Optima Kitchen & Bath

Founded 2009 • With Angi since June 2012

We have an extensive knowledge and experience in kitchen and bathroom design and remodeling. We also specialize in major renovation works and additions. We work with our clients on a personal level, to meet their requirements and needs, from designing the kitchen and bathroom to selecting cabinets, tiles, fixtures, faucets, counter tops, etc. and installing them. By using our remodeling services, we make sure that you get the highest quality of work on time and within your budget. By dealing with us, you are avoiding dealing with several sub contractors and vendors since we are working with you from the start to the end of your project on a daily basis. We work with reputable vendors who can provide us with quality materials such as kitchen cabinets, vanities, counter tops, tiles, wood floors, fixtures and shower doors at a very competitive price. Tell us about your kitchen and bathroom remodeling project and find out how we can help make it a reality.

Awards and Badges

Angi Certified

Business Highlights

Emergency Services OfferedEmergency Services Offered

Images

123

Amenities

Free Estimates
Yes
Warranties
Yes
Senior Discount
5%
Emergency Service
Yes
Eco-Friendly Accreditations
No
Licensed
Trade License Number
2705146904
Bonded
Insured
All statements concerning insurance, licenses, and bonds are informational only, and are self-reported. Since insurance, licenses and bonds can expire and can be cancelled, homeowners should always check such information for themselves. To find more licensing information for your state, visit our Find Licensing Requirements page. Contact pro for more details.

Verified Reviews

4.7

(179) Verified Reviews

Ratings Distribution

5

141

4

11

3

20

2

3

1

4

Rating Details

Price
4.7
Professionalism
4.7
Punctuality
4.8
Quality
4.7
Responsiveness
4.7

Read reviews by category

home remodeling (171)tile installation (42)plumbers (38)countertop installation (32)flooring (31)electrician (31)lighting (24)drywall (24)
Showing 1-25 of 179 reviews
Karen E.
5.0
08/26/2022
As a recent customer, I am happy to share my experience with Optima Kitchen and Bath. Let me begin by saying that not only was their work outstanding, they were professional, courteous, timely, and went above and beyond the norm. The vision that I had for a kitchen remodel was greatly enhanced by their talented team. I addition to the kitchen, we added a bar area which uses the space efficiently. The hardwood floors installed throughout the house are just beautiful. Optima painted my whole house from top to bottom. My home looks amazing!!!! Optima hires only quality, skilled people that are friendly and trustworthy. I always felt comfortable with the team in my home. I have hired many contractors over the years and, by far, Optima Kitchen and Bath has exceeded my expectations. I would be hard pressed to find a company that fulfills promises better than Optima Kitchen and Bath. I will definitely recommend them and plan to use them in the future.
Description of Work
Kitchen, Flooring, Painting
Category
flooring contractor, home remodeling
Hire Again?
Yes
Mark R.
5.0
02/01/2022
Malcom and Amin, did a marvelous job. I rate them 5 stars. Malcom told me my house would be beautiful when finished. He and Amin did not fail! Very happy with results.
Description of Work
kitchen renovation
Category
custom cabinets, countertops, electrician, flooring contractor, interior designers, remodeling, marble & granite, home remodeling, interior painters
Hire Again?
Yes
Cinar A.
5.0
10/03/2020
Optima construction renovated three bathrooms and the basement in our town home in the Capitol Hill neighborhood of Washington DC. Amin, Tony and the rest of the crew were very attentive discussing every detail of the renovation with us prior to starting the work. Once the work started they were at our house every day to make sure the work moved ahead smoothly. If there was an issue, the team was always available to quickly remedy or address the problem. At the end of the day, we are very happy with the renovations, and recommend Optima for their reliable and timely work.
Description of Work
Bathroom Renovations
Category
architect, home remodeling
Hire Again?
Yes
Jessica M.
5.0
04/27/2020
We absolutely loved working with Amin, Victor, and Nasim at Optima. From the start, Amin was incredibly responsive and proactive. We added a new bathroom to an old row house in DC - adding new plumbing was far from easy. Throughout the process, Amin was attentive to the details, patient and thorough, and Victor and his team were amazing. We couldn't be more pleased with the end result. The whole team was a joy to work with and we appreciate the care that they put into our first home renovation. We will look forward to working with Amin, Victor, and Nasim again in the future!
Description of Work
New master bathroom
Category
architect, home remodeling
Hire Again?
Yes
RYAN H.
5.0
08/31/2019
We cannot recommend Amin and team highly enough. Professional, courteous, and the work was detailed, clean, timely, and looked fantastic.
Description of Work
Bathroom rebuild/remodel
Category
home remodeling
Cost
$15,000
Hire Again?
Yes
Rebeca L.
5.0
08/21/2019
If it were socially acceptable to live in a bathroom, I would! The bathroom Optima Kitchen and Bath built is absolutely my favorite room in my home. Second only to the Kitchen they renovated. I had a picture of my dream bathroom, and Amin brought it to life. Even things that I thought were going to be impossible, like a bigger shower, were embodied beautifully in all marble glory. The bathroom project was a complete gut job, which gave way to a beautiful brand new bathroom. The craftsmanship is impeccable and anytime I found something not up to my standards it was fixed immediately. For the Kitchen, I was looking for a face lift like new lighting, countertops, and backslash. It ended up being such a seamless job, that it looks like the kitchen was always like that. Amin and his team are extremely professional and consistent. Work was performed everyday ensuring that the work was done on time. I will definitely be hiring Optima Kitchen and Bath again for the guest bathroom renovation. And I know there is no design too far reaching for Amin and his team.
Description of Work
Bath and Kithchen Remodel
Category
home remodeling
Cost
$60,000
Hire Again?
Yes
Jonathan G.
5.0
06/26/2019
After thoroughly interviewing and researching several contractors, my wife and I hired Amin under a very stressful situation. We bought our first home only to come home 4 days after we moved in to our entire home flooded due to a burst pipe. Amin’s honesty, knowledge, caring, and calm demeanor helped us work through the steps we needed to take to repair our dream purchase back into what we fell in love with the day we purchased it. Amin’s staff (Tony, Victor, John and others) also extended the same character, attitude, and performance in the repairs of our home. Optima Kitchen & Bath did large-scale repair work to our home, including demo, new hardwood floors, drywall and painting, and three bathrooms. We could not be happier with the work! The work is of the highest quality, and it exceeded our expectations. Prior to beginning the job, Amin came to our home on multiple occasions. Not only did he walk through several times to plan the job, but the employees who would actually be doing the work visited our home to familiarize themselves with the work that would be required. Amin guided us throughout the entire process with excellent design advice, and he was very quick to respond any time we had a question. Throughout the process, Amin communicated regularly about the day-to-day work that was being done and took the time to meet with us on-site in person to ensure that the job was being done to our satisfaction. A good contractor is one who can work within your budget and provide you with options of what needs to be done, what should be done, or what can be done to fix or improve your home. Amin and his staff were very detailed oriented on color schemes, size of tile/moulding, placement and size of lights, and other details we never would have thought of. The work was efficient, as they finished the job ahead of the timeline they originally estimated. Above all, Optima was honest, trustworthy, and a company we knew we could fully trust to do high quality work on our home. After our experience, we highly recommend Amin Hussein and his crew at Optima Kitchen & Bath, and we will hire them in any future renovations we do.
Description of Work
Large scale home repairs
Category
ceramic tile, drywall, glass repair, handyman service, interior designers, lighting, plumbing, remodeling, home remodeling, interior painters
Hire Again?
Yes
Tom D.
5.0
06/03/2019
Amin was very responsive and quick to address any issues that arose. The work was quick and high quality at a good price.
Description of Work
Bathroom remodel
Category
home remodeling
Hire Again?
Yes
Janie L.
5.0
04/06/2019
4/6/2019 Honest, courteous, professional, and very easy to work with. They go the extra mile to make your renovation dreams come true. Did I mention thorough? I love-love-love my new master bathroom! It is simply beautiful and my new favorite room in my home. I called and interviewed several local area contractors and received price quotes for our project. All were roughly the same price wise. Amin Hussain was the last person I called as my husband and I thought maybe we would put the project on hold as we were considering doing other work in our house. All the interviews went fine, in fact I liked a few contractors very much. Until I met Amin however, none had given me a real sense of what my master bathroom could be. My husband and I knew it was a unique space and I had several design ideals of my own but that was it. Amin immediately understood and knew what I was looking for. During the interview, he took notes and wrote down everything I asked for. Though his price quote wasn’t the lowest, it was the most comprehensive and thorough. He sent links to items that he would install in my bathroom which was a plus. He and his team, Victor and Michael, were a joy to work with from start to end and I couldn’t happier with the final results in my bathroom. The project was completed on time and within schedule as everything ran smoothly. A few changes were made to the initial design as I added things but there never any problem as they are very flexible and again easy to work with. I have two more bathrooms that require a renovation and I “know” who will be doing the work as my contractor search is finally over. Optima Kitchen and Bath is place to go to if you want bathroom or kitchen renovation work done by true professionals. I cannot recommend these guys highly enough! Janie Alexandria VA

Images

Review for Optima Kitchen & Bath  - 4705 Eisenhower Ave, Alexandria, VA - 37805228Review for Optima Kitchen & Bath  - 4705 Eisenhower Ave, Alexandria, VA - 37805228Review for Optima Kitchen & Bath  - 4705 Eisenhower Ave, Alexandria, VA - 37805228
Description of Work
Master Bathroom Remodel
Category
home remodeling
Hire Again?
Yes
Sandra L.
5.0
12/18/2018
I was very pleased with Optima Kitchen and Bath. The project was completed within the timeframe and within estimate ( there were a few very small extra costs for additional items I requested. Bathrooms look great!
Description of Work
Complete remodel of 2 bathrooms
Category
ceramic tile, countertops, drywall, electrician, flooring contractor, glass repair, lighting, plumbing, remodeling, marble & granite, home remodeling, interior painters
Hire Again?
Yes
Heather S.
5.0
11/21/2018
Optima Kitchen & Bath completed a full renovation of my condo’s bathroom this spring. I was satisfied with the process from beginning to end and am delighted with the finished product, which has beautiful workmanship and is exactly what I envisioned. Optima/Amin was one of five contractors I received an in home estimate from; the estimate was competitive (if on the higher end) and I felt most comfortable that Amin understood my vision and could translate it to reality. Amin was involved and helpful throughout the process of selecting fixtures, tile, and other finishes; he was responsive and professional in all interactions, even when I had multiple questions or was uncertain about elements of the renovation. He was very accessible to me by phone/text/e-mail and made frequent visits to the site. He and his team lead Victor (who did an excellent job) made suggestions and provided honest feedback regarding my choices (materials, placement, size) that ultimately led to an amazing finished product. Amin’s team even returned twice after completion of the project to correct minor issues I noticed; Amin seemed committed to achieving 100% satisfaction with the final outcome. Based on product, process, communication, and customer service I can’t recommend Amin and his team enough! I would definitely use them again. I would also like to note that Amin and Victor were sensitive to the restrictions of my 1937 condo building and very conscientious to my neighbors, some of whom made a point to tell me about positive interactions they had with the team during the renovation. For those who live in close proximity to others, this is key. He and his team also seemed comfortable dealing with whatever surprises my 1937 building (& a poorly done renovation by the previous owner) brought our way. Again, very impressed!
Description of Work
Gut renovation of primary bath (8X10) in 1937 condo, including: reframing of walls/ceiling, leveling of floor joists/new sub floor, moving of drain/new plumbing, new electrical/lighting, installation of cast iron tub/vanity/other fixtures, tiling (including ceramic tub/shower surround & porcelain floor), and all other finishes. Six new doors were also provided/painted/installed in the condo. Cost included all permitting costs for job.
Category
ceramic tile, drywall, electrician, flooring contractor, lighting, plumbing, remodeling, home remodeling, interior painters
Cost
$20,000
Hire Again?
Yes
Christy T.
5.0
11/02/2018
Excellent! We completely re-did our kitchen without really changing the footprint. Amin's crew, mostly Tony and Johnny, were hardworking and professional. We always knew when they were coming and the job took only 3 weeks. We love our new kitchen!
Description of Work
Kitchen remodel
Category
home remodeling
Hire Again?
Yes
Lester M.
5.0
10/10/2018
The work was performed timely and professionaly.
Description of Work
Complete kitchen replacement that required electrical and plumbing changes in addition to carpentry modifications.
Category
custom cabinets, contractors, ceramic tile, countertops, drywall, electrician, flooring contractor, lighting, woodworking, home remodeling
Cost
$51,000
Hire Again?
Yes
P M.
5.0
03/22/2018
We initially got an estimate from the floor installation company used by Home Depot but after reading the terrible reviews about their work, we decided to do more research and found Optima Kitchen and Bath. I can say we do not regret our decision. Amin and his team were excellent. Amin took the time to listen carefully to what we had in mind for our floor and was very professional. You can tell his crew are very experienced and know their stuff; they were very professional, clean and took care of the little details that actually make the difference between an okay job vs a high quality job. My floor looks beautiful and we are super happy with the results. Will definitely hire them again!
Description of Work
Marble tile.
Category
ceramic tile, marble & granite
Hire Again?
Yes
Tim B.
5.0
02/12/2018
Very well. The work was done in a timely manner and my wife and I are very happy with the remodel project.
Description of Work
Remodel master bathroom
Category
remodeling, home remodeling
Hire Again?
Yes
Boom B.
5.0
01/27/2018
Excellent. Amin was responsive at all stages of the process. The price was fair (mid-range for the area and for the products we chose.) The finished work looks perfect and beautiful. They worked hard at all stages (through the freezing cold, too.) Work was started on time and finished on schedule. They were more than willing to make any adjustments we asked for during the process. I would highly recommend Optima to anyone.
Description of Work
Upstairs bathroom remodeling and work on the plumbing behind the walls. The work was extensive. They had to rip out the entire bathroom down to the studs and then fix the pipes behind the walls and do some capping on the pipes. They also had to run a wire from the basement to install a whirlpool tub. They also fixed a pipe that froze during the process because of the extreme cold in the area and they installed a shut off valve.
Category
remodeling, home remodeling
Hire Again?
Yes
Allison B.
5.0
12/20/2017
Amin and his team provided a prompt estimate, easily availed himself for product selection, and completed the work in a timely manner. His team did a terrific job, and made fixes to make sure we were satisfied with the final product.
Description of Work
Remodeling kitchen
Category
countertops, drywall, electrician, remodeling, home remodeling
Cost
$12,000
Hire Again?
Yes
Stephanie B.
5.0
11/14/2017
The workmanship was very high quality. All the team members were professional, respectful of our home, and delivered excellent work. Amin was very responsive, offered valuable design advice, and was very easy to work with. We are very happy with the work and would absolutely contract with them again.
Description of Work
Re-tiling shower, replace vanity top, and new bathroom hardware.
Category
ceramic tile, countertops, drywall, interior designers, plumbing, remodeling, marble & granite, home remodeling
Cost
$6,000
Hire Again?
Yes
Cynthia C.
5.0
10/29/2017
When the wrong vanity was delivered, Amin kept us abreast of the challenge and the wait for the correct vanity. We appreciated his team's attention to detail, understanding of our vision and dependability. When our master bath shower "died" (faucet broke and we needed to use a vice-wrench to operate it) they understood the urgency of our situation and put all-hands to finish our only functioning bathroom. Kudos to them!! Optima Kitchen and Bath is a solid, reliable and trustable team that will get your project or projects done, right. No nitpicking, no re-dos. We already have them working on a second bathroom, door and hardware replacement and other details. We can't wait to get our kitchen remodeled.

Images

Review for Optima Kitchen & Bath  - 4705 Eisenhower Ave, Alexandria, VA - 36493106Review for Optima Kitchen & Bath  - 4705 Eisenhower Ave, Alexandria, VA - 36493106Review for Optima Kitchen & Bath  - 4705 Eisenhower Ave, Alexandria, VA - 36493106Review for Optima Kitchen & Bath  - 4705 Eisenhower Ave, Alexandria, VA - 36493106
Description of Work
Through the help of Optima Kitchen and Bath (and in particular Amin Hussain) we are in the process of gutting our 1980s condo we purchased in the West End/DuPont. Our first project with him was a small second bath - 60x60. Nothing glamorous but Optima did an excellent job. Subway tile in the shower, new tub, black 12x24 tile on the floor, Kohler fixtures, and a Rombo vanity and mirror.
Category
ceramic tile, drywall, electrician, flooring contractor, gutter repair, lighting, remodeling, woodworking, home remodeling, interior painters
Hire Again?
Yes
Rhett W.
5.0
10/28/2017
Perfect. Optima showed up when appointments were maide and completed projects on tiem and on budget.
Description of Work
A variety of projects in the kitchen, bathrooms, laundry rooms, patio, all of which were beautifullh completed. Also, excellent work on a customized built-in.
Category
custom cabinets, ceramic tile, closet systems, countertops, drywall, electrician, flooring contractor, glass repair, handyman service, lighting, remodeling, marble & granite, home remodeling, interior painters
Hire Again?
Yes
kristin M.
5.0
10/27/2017
Amin, and the men he employs to do the trade work, are exceptional. I immediately noted their respect for my home and in the process of the demo and remodel they made every effort to keep a clean work site. The workmanship is very good as well. If I wasn't happy with a small detail they were always happy to fix or adjust it. I am VERY happy with my new kitchen.

Images

Review for Optima Kitchen & Bath  - 4705 Eisenhower Ave, Alexandria, VA - 36483026Review for Optima Kitchen & Bath  - 4705 Eisenhower Ave, Alexandria, VA - 36483026Review for Optima Kitchen & Bath  - 4705 Eisenhower Ave, Alexandria, VA - 36483026
Description of Work
We purchased a dated 1977 colonial home in need of a complete kitchen remodel. For the renovation Optima removed a wall, rerouted pipes, added an exhaust fan for the range, laid drywall, installed cabinets and countertops, tiled the backsplash, installed recessed lights and pendant lighting, installed appliances, and painted.
Category
remodeling, home remodeling
Hire Again?
Yes
Jeffrey S.
5.0
09/23/2017
Amin and company nailed it. On time, on budget and with beautiful results. We could not be more pleased with the outcome.
Description of Work
We needed a bathroom remodel completed on a very short timeline.
Category
remodeling, home remodeling
Cost
$7,300
Hire Again?
Yes
Andres D.
5.0
07/24/2017
Amin was a joy to work with. He was responsive from beginning to end and addressed all of our needs. From the start he listened to what we were looking for, showed us plans for the new kitchen and revised as requested. Amin also provided his own input when he thought it would lead to a better kitchen. A number of times, Amin would make a suggestion that at the end of the project made the kitchen even better than what we had hoped for. Amin is thoughtful about his suppliers and looks for companies that will deliver the best product. He hires the best people to do the job. Above all, he was done on time and if a day fell when no work was to be done, he would call me to explain why. Living in DC, you hear that remodels of this sort cost more than in other parts of the country so you know what you are getting into when you start a project like this. The kitchen Amin designed and had built for us was worth every penny.

Images

Review for Optima Kitchen & Bath  - 4705 Eisenhower Ave, Alexandria, VA - 35899880Review for Optima Kitchen & Bath  - 4705 Eisenhower Ave, Alexandria, VA - 35899880Review for Optima Kitchen & Bath  - 4705 Eisenhower Ave, Alexandria, VA - 35899880Review for Optima Kitchen & Bath  - 4705 Eisenhower Ave, Alexandria, VA - 35899880Review for Optima Kitchen & Bath  - 4705 Eisenhower Ave, Alexandria, VA - 35899880Review for Optima Kitchen & Bath  - 4705 Eisenhower Ave, Alexandria, VA - 35899880
Description of Work
Amin completed a total remodel of our kitchen including new cabinets, countertop, tile, backsplash, sink, and install for all new appliances (appliances included refrigerator, range, range hood, and dishwasher, sink faucet, and garbage disposal but we purchased these appliances outside of the contracted work).
Category
remodeling, home remodeling
Cost
$29,000
Hire Again?
Yes
Jake N.
5.0
07/22/2017
Amin (and his crew led by Luis) saved the day for us. After being burned by a previous contractor who had given us a lower price, we decided to play it safe and hire the top of the line. Amin made several visits to the job site and discussed all of the details of the job before we committed to a contract. His initial estimate has revised upward after reviewing the job more carefully, but this was all before any contract was signed or payments made. A few details: 1) We acquired most of the fixtures ourselves (except for the tub, vanity and vanity top). The glass shower was installed by Dulles Glass, arranged by Optima. The price I quote below does not include the other fixtures and the tile that we acquired on our own, which Amin was happy to install without additional fee. I highly recommend you do your research and be involved with every aspect of the job, and picking and acquiring your own fixtures is a good way to save money and be sure you are getting the quality you want. You may not get a lot of direction from Optima in terms of design and style choices, so it's important to know what you want going in. 2) Luis and his crew are highly skilled. The tiling and installation of the fixtures was top-notch. I cannot comment on the skill of any other crew that may by assigned by Optima; 3) The work comes with a one-year warranty. After about 6 months, we noticed some discoloration of the grout in the marble shower floor. Amin visited the site and then had a team come out a few days later to check for leaks and had they re-grouted and sealed the floor for no charge. Very honorable.

Images

Review for Optima Kitchen & Bath  - 4705 Eisenhower Ave, Alexandria, VA - 35882524Review for Optima Kitchen & Bath  - 4705 Eisenhower Ave, Alexandria, VA - 35882524Review for Optima Kitchen & Bath  - 4705 Eisenhower Ave, Alexandria, VA - 35882524Review for Optima Kitchen & Bath  - 4705 Eisenhower Ave, Alexandria, VA - 35882524
Description of Work
Gut renovation of 7'x 9' Master Bathroom in prewar condo. Bathroom had been demolished by previous contractor who then abandoned the job. Optima picked up from the gutted space to install all plumbing, electric, marble tile, and fixtures, including free standing tub and walk in glass shower.
Category
plumbing, remodeling, marble & granite, home remodeling
Cost
$35,000
Hire Again?
Yes
David B.
5.0
07/20/2017
We contracted with Optima Kitchen and Bath for our kitchen and partial bath remodel. We first became interested in Optima kitchen and Bath after looking at Angie’s List reviews. Our initial meeting with Amin H. confirmed his honesty, integrity and professionalism as stated in the reviews. Additionally, Optima Kitchen and Bath had at avail high quality cabinets, backsplash/countertop materials and many great options for plumbing and lighting supplies. Based on the above we chose Optima Kitchen and Bath for our project, though they were not the cheapest of three alternatives. At project completion, we were not disappointed that we did. The Optima team provided detailed knowledge of all aspects of demolition through installation of cabinets, counter-tops, back-splash, cabinets, appliances, cabinet hardware and all accessories. The work was completed precisely, in quality fashion and respectfully of our home with no damages. We are extremely delighted with the end result and Optima kitchen and Bath is our first choice for any additional work in the future. We gladly recommend Amin H. and Optima Kitchen and Bath to anyone planning home remodeling projects.
Description of Work
Kitchen and Master Bath remodel
Category
ceramic tile, countertops, drywall, glass repair, lighting, plumbing, remodeling, marble & granite, home remodeling, interior painters
Cost
$38
Hire Again?
Yes

Phone

Address

4705 Eisenhower Ave Ste A

Alexandria, VA 22304

Monday
9:00 AM - 6:00 PM
Tuesday
9:00 AM - 6:00 PM
Wednesday
9:00 AM - 6:00 PM
Thursday
9:00 AM - 6:00 PM
Friday
9:00 AM - 6:00 PM
Saturday
10:00 AM - 1:00 PM

Website

http://www.optimakb.com

Other Information

Services offered

Kitchen & Bath remodeling, hardwood & tile flooring, counter tops, back splash, lighting, painting, installation of bathroom fixtures & faucets, shower doors, finishing basements, doors & windows replacement

Services not offered

Roofing, Gutter Cleaning.

Payment options

Check

FAQ

Optima Kitchen & Bath is currently rated 4.7 overall out of 5.

Optima Kitchen & Bath is open:

Monday: 9:00 AM - 6:00 PM

Tuesday: 9:00 AM - 6:00 PM

Wednesday: 9:00 AM - 6:00 PM

Thursday: 9:00 AM - 6:00 PM

Friday: 9:00 AM - 6:00 PM

Saturday: 10:00 AM - 1:00 PM

Optima Kitchen & Bath accepts the following forms of payment: Check

Yes, Optima Kitchen & Bath offers free project estimates.

No, Optima Kitchen & Bath does not offer eco-friendly accreditations.

Yes, Optima Kitchen & Bath offers a 5% senior discount.

Yes, Optima Kitchen & Bath offers emergency services.

Yes, Optima Kitchen & Bath offers warranties.

Optima Kitchen & Bath offers the following services: Kitchen & Bath remodeling, hardwood & tile flooring, counter tops, back splash, lighting, painting, installation of bathroom fixtures & faucets, shower doors, finishing basements, doors & windows replacement