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Keystone Window of Pennsylvania
Doors (Interior) - Install or Replace, Metal Siding: Install or Completely Replace, Metal Siding: Repair or Partially Replace,
About us
Keystone Window of Pennsylvania is a replacement window & door installation company, serving the Philadelphia area. We have access to all major brands. You will not find a better value than Keystone Window. We sell for less because we keep our overhead low.
Business highlights
20 years of experience
Services we offer
& Sliding. Doors – Patio, & Storm Doors., Bay, Bow, Casement, Double Hung, Entry, Windows – Energy Efficient
Amenities
Free Estimates
Yes
Accepted Payment Methods
- CreditCard
Reviews
4.640 Reviews
| Number of Stars | Image of Distribution | Number of Ratings |
|---|---|---|
| 83% | ||
| 8% | ||
| 0% | ||
| 5% | ||
| 5% |
Showing 1-25 of 40 reviews
Richard D.
Sep 2020
We had a bad window leak on two of the windows. Rob claimed it wasn't his fault even though they never leaked before. He refused to fix them. I would not use them. The installation was not good and they unprofessional when a problem arose.
Heather T.
Sep 2019
It was absolutely perfect, they were on time, very clean, neat, professional and polite. The owner came to talk to us in person, and he was extremely helpful and working on us with financing. I would highly recommend this company.
Lois S.
Jul 2018
Joe provided the initial consultation on June 14th. I was shown a sample window and given an estimate for replacing the living room, dining room, kitchen, and two back bedroom windows. A week later Rob Mato took the final measurements and at the time I was told it would take six weeks before the windows would be installed. Four weeks later I received a call the windows were ready for installation. Installation was scheduled for noon on July 26, 2018. If there is one word to describe the two young men who installed my windows it would be OUTSTANDING. They took great pains to make sure each window was installed and worked properly and the outsiide capping looks clean and neat. I paid extra and would recommend anyone thinking of replacing their windows to get the added foam insulation in the frames and meeting bars. I believe this will cut out or dramatically cut down on air coming in from the windows, especially in the winter.
Eileen W.
May 2017
Excellent job!!
Robin G.
Mar 2017
Brilliantly.
Response from Keystone Window of Pennsylvania
"Thanks [Member Name Removed] for the recognition. The after pictures look awesome as this job was very difficult with a 100+ year old farmhouse.."
Marsha N.
Jan 2017
Very pleased with my new door. The quote process was low pressure which I really appreciated after a previous quote from another company. The installation went smoothly. Door is working well and looks good.
Charles K.
Jul 2016
unknown
Stephanie S.
Apr 2016
unknown
Response from Keystone Window of Pennsylvania
"Thanks so much [Member Name Removed] for a great review and you will enjoy those windows for many years to come. Rob Mato"
Charles K.
Oct 2015
Very neat , clean job. Found a small ding in capping , fixed within days. Nice work Rob and his crew.
Response from Keystone Window of Pennsylvania
"Thank you Bill for the review. We work hard to offer a great value to every customer. We are one of the very few companies that are truly local selling windows/doors as a specialty."
Matthew M.
Apr 2015
Very professional and clean look to our house now. We have all new windows. The trim looks immaculate and the quality of these windows are amazing. The heater rarely runs now and its so quiet outside! As an added bonus, they came 2 weeks earlier than expected so we got the windows just in time for our new baby, who came home 2 days after they were finished. Great timing! Thank you Keystone Window!
Response from Keystone Window of Pennsylvania
"Thanks for selecting my company. We specialize in windows and our windows, workmanship, and honest up front pricing is unheard of in this industry. You will be much cooler this summer and much warmer this winter. Appreciate the opportunity."
SUSANNE O.
Mar 2015
Initially, installation appeared professional, with a quality window. Within 8 months of installation, two of the windows leaked following snow and a thaw, causing damage to drywall and wood molding surrounding the window. Contacted Keystone Windows to have the problem addressed, assuming it was an installation problem. In the 8 years we have been the home prior to the new window installation, none of the windows ever leaked. Rob, the listed owner of the company, came out, took some pictures, and indicated he would send it to his source who fixes such issues.
The following is the response I received: "Spoke with James my installation manager late last night. Our windows are in compliance with our installation methods and caulked properly. He thinks it is a siding issue (i think window leaks above 2 windows in close to the same spot leans towards the siding too) and you should contact a local siding company. Your siding or j channel has failed is his guess. I would not tell them when you got new windows or that I reviewed this, just let them check it out. Make sure they will give you something in writing as to their findings before they come out so you can contact your insurance company (this is what I would tell them). If for some reason they tell you its the windows, we would need a detailed report as to the findings.I wish I could say its something we can visibly correct. It costs me "0" to correct issues if I found something."
Just because you can "visibly" see a problem with your installation, doesn't mean there isn't a problem. Would not recommend this company for two reasons now, poor performance, and the unwillingness to stand behind their work.
The following is the response I received: "Spoke with James my installation manager late last night. Our windows are in compliance with our installation methods and caulked properly. He thinks it is a siding issue (i think window leaks above 2 windows in close to the same spot leans towards the siding too) and you should contact a local siding company. Your siding or j channel has failed is his guess. I would not tell them when you got new windows or that I reviewed this, just let them check it out. Make sure they will give you something in writing as to their findings before they come out so you can contact your insurance company (this is what I would tell them). If for some reason they tell you its the windows, we would need a detailed report as to the findings.I wish I could say its something we can visibly correct. It costs me "0" to correct issues if I found something."
Just because you can "visibly" see a problem with your installation, doesn't mean there isn't a problem. Would not recommend this company for two reasons now, poor performance, and the unwillingness to stand behind their work.
Response from Keystone Window of Pennsylvania
"We had another installation crew that inspected this job Sunday 3/22/15 because of this filed negative review (I inspected 3/13/15). They confirmed as our original inspection did, "the windows and capping are installed and sealed correctly". I sent an email to this customer 3/23/15 in the late morning with a picture of what might be wrong with her siding, as we are not a siding/roofing company, we are a window company. Our crew caulked an area where there was a gap between her siding and J Channel in hopes of maybe this is where she has water issues. This really points to a siding issue when you have two windows above each other that leaked in almost the same spot (water runs south). We also suggested to her this could be "ice damming" which is common in the insurance industry when water comes into a house since this leaked only "1" time in in 8 months since we installed the windows. We have asked her to remove this negative complaint on 3/23/15 because it has no merit and she has not responded. I told her on 3/17/15 via a email, to get a SIDING company to review and she just wanted to file complaints against us instead of being proactive and take our much caring, and concerned advice."
Thomas K.
Jan 2015
Workers arrived on time both days and called ahead to let us know if they would be earlier or were held up to pick up supplies. They worked straight through the day, which was very cold, in order to get the job done and keep the house as comfortable as possible. Very professional the windows looked fine inside and out and cleaned up as well as they could. Rob, the business owner, stopped by after job completion to inspect the work after the windows were installed to make sure that we and he were satisfied with the windows and workmanship. We have other windows and doors we want to replace in the future and would definitely use Keystone Window again.
Response from Keystone Window of Pennsylvania
"[member name removed], We appreciate the opportunity very much and work hard everyday to satisfy our customers in this competitive world....I hope you are now a lot warmer with those great "Energy Star" new windows rated at a .26 U-Value. I hope to hear from you soon. Thank you, Rob Mato"
Charles K.
Oct 2014
unknown
Response from Keystone Window of Pennsylvania
"Hi {removed member name} , Please submit a final review when you have a chance. Thank you for your business. Rob Mato"
Jim R.
Sep 2014
Rob, the business owner, came out and showed me my options for vinyl replacement windows. He very thorough but not pushy. His price was very fair and the installation was excellent.
I also replaced some windows in 2013, buying them myself at a big home improvement store and having a handyman/carpenter install them. For the same amount per window Rob gave me a better quality window and Jim the installer, did a much better job with the exterior capping and caulking. The new windows look great and my wife and I are very pleased.
I will definitely use Keystone again, as we are working our way around the house, replacing a few more each year until they are all done.
Response from Keystone Window of Pennsylvania
"Thanks so much for the great rating. We try very hard as a medium sized business to do the best we can. There are very few companies in this market with a great reputation and a reasonably priced window."
Jeanine T.
Aug 2014
Everything went great. Mr. Mato initially came by to do an estimate and measure the windows. He explained everything very well. There were no surprises with the amount that was quoted.....we paid half up front and half when the windows were installed. James and Travis did the installation and were very efficient. They were right on time and very professional. I'm very happy with the windows....they look good, and I think it's made a difference in keeping the top floor of the house cooler. I would not hesitate to hire them again.
Response from Keystone Window of Pennsylvania
"Thanks so much for the excellent rating and I hope other members will be interested in our great value program. We work very hard everyday to be the best window replacement company in the Philadelphia market. This is our specialty, our focus, and what we love to do. Thanks again, Rob Mato, Owner."
Jerry C.
Jul 2014
Very professional and meticulous work. Rob Mato, President, came to the house before the installation to measure the windows, show displays of available windows to purchase and provide some background on the company. A few weeks later, after the windows were made, Andre and Dimitri installed the windows over a 2 day period. They were very good workers and answered any questions I asked. They cleaned-up after each day. The windows are excellent.
I recommend Keystone to all who need new windows.
I recommend Keystone to all who need new windows.
Response from Keystone Window of Pennsylvania
"Thank you for recognizing how perfect we try to be. It is nice to read how a homeowner appreciates great work at a very fair price without all the high pressure and gimmicks out there. Our value remains unmatched in this industry and we will try to remain a little old fashion at all times. Thank you, Rob Mato, President."
Robert L.
Jun 2014
Rob (owner) came right out to provide the estimate. Cherie kept me informed as to when the windows would be ready and we confirmed dates for the installation. The Installer arrived right on schedule and worked diligently to replacing one window at a time until everything was done. He then completed the capping on the outside. The new windows look incredible and I'm excited that the house will not be drafty anymore in the winter!!
Response from Keystone Window of Pennsylvania
"We appreciate these comments and work hard every day to satisfy all customers. We offer a great value without the pressure most companies apply when they are in the home and will save you thousands of dollars. We will continue to offer the best value in the industry in hopes of getting lots of referrals and recommendations. If you have to buy that day "RUN" or if the offer is too good to be true, it probably is."
Norman G.
Apr 2014
unknown
Norman G.
Apr 2014
See above! Everything went well.
Response from Keystone Window of Pennsylvania
"Thank you for recognizing the hard work we put in everyday to make sure all customers are completely satisfied. We thank you for your business."
Michael O.
Mar 2014
Prices were very fair, installers (2, father and son) were excellent.
Response from Keystone Window of Pennsylvania
"Thanks for the great referral and recommendation. Our customers are our greatest strength."
Daniel G.
Nov 2013
Rob came out and explained everything. Had a sample window and showed all the features. There was some wood rot and he examined it and included the repair in the estimate. The installer was neat clean and complete. He repaired the wood rot and did a nice hob of capping and caulking the frame on the exterior. Had two other companies come out. One offered a slightly lower quality window at roughly the same price, but did not have a sample window to look at. One came out and told me I had termites and would not give an estimate for repairing the rot. Said they would adjust the bill at the time of installation. I know about termites and it was not termites, it was wood rot.
Response from Keystone Window of Pennsylvania
"We strive to give every homeowner the best value while not sacrificing workmanship or quality."
Angela Z.
Mar 2013
There were a few issues involving installation, but, EVERYTHING was resolved.
Response from Keystone Window of Pennsylvania
"The second story Bay window was difficult and we are glad you are happy with the value we offer. Thank you for your business."
Leslie H.
Nov 2012
I wish there were a rating above A - like a Gold Star. That's how happy we are with the installation that Keystone Windows just finished today.
I'd met Rob at the Valley Forge Home Show earlier this year and what stuck with me was that he was very low-key (and that's a good thing!) for a salesman, unlike most of the other home improvement companies I'd spoken with at the show. 8 months later, we were finally ready to get windows. When we made the appts with each potential vendor, we'd said that we were just starting our search and wouldn't be making the decision till we'd met with a few companies. Rob was the only salesman that listened to that and didn't pressure us to sign that night. He said - I know I have the best window and the best price. Take your time, meet with other companies and give me a call when you're ready to sign. That's confidence. We met with other window companies and their products were good, but not better than, Keystone's and the prices were significantly higher.
When I called to check on the order status, I mentioned that 1. we were very anxious to get the windows as soon as we could and 2. that we'd need to be here the day they installed the LR windows b/c our dogs would have to be outside that day and we had to keep an eye on them in the yard. The windows were due in Monday the 19th and installation would be sched. after they arrived. Installation was estimated around the end of Nov.
This past Tuesday, Charles from Keystone called to ask if they could install the windows Black Friday & Saturday. We were surprised they were working on a holiday weekend but were thrilled to get them in a week earlier than anticipated. We figured it would take 3 days to do everything.
Promptly at 8 am yesterday Charles & his crew of 3 guys arrived and started removing the windows. My husband & I were astounded at how quickly they worked. It was like a well-oiled machine. In 9 hours yesterday, they got all 21 windows installed and the capping installed on about 9 of them. They were back at 8 am sharp today to finish the capping and caulk the remaining windows - they were done by 1 pm. We couldn't believe it only took a day-and-a-half!
I worked in the fenestration industry for 8 years so I can tell a quality product from one that looks pretty but may not perform too well. The windows are fabulous! Our neighbor has the most god-awful noisy car that he needs to rev up for 10 min every morning so it won't stall out. Didn't hear it or the noisy motorcycles that like to race down our street! It's so quiet in the house now and we've noticed how much warmer the house is with the thermostat at the same temp prior to the window replacement.
Now, while we were very happy with the sales process and the product quality, we have to say just how WONDERFUL the installers were. In addition to being very hard workers and competent at their job, those gentleman were so nice and friendly and are great with kids! We have a 9-year old and she watched TV in her room while the windows were being replaced. The installers chatted with her while working on her windows and she was very comfortable having 4 new people in the house for two days. When they finished Friday, there was still work to be done on all the bedroom windows. The installer working on her room reinstalled her blinds (without being asked) so she would have her privacy. That was so thoughtful and we really appreciated it. Upon completion today, the guys again took the initiative to reinstall the blinds in my daughter's room because they knew how excited she was to have her room finished.
After they were finished, we spoke to one of the installers about our very old, drafty front door. It has a stained glass transom and fancy frame molding that we want to preserve. Carlos offered a suggestion about a particular type of door that could be used to replace the current one.
Also, the installers cleaned up the exterior and interior debris at the end of each workday.
We are just SO pleased with Keystone from start to finish. Once again, our Angie's List subscription has been worth every penny!
I'd met Rob at the Valley Forge Home Show earlier this year and what stuck with me was that he was very low-key (and that's a good thing!) for a salesman, unlike most of the other home improvement companies I'd spoken with at the show. 8 months later, we were finally ready to get windows. When we made the appts with each potential vendor, we'd said that we were just starting our search and wouldn't be making the decision till we'd met with a few companies. Rob was the only salesman that listened to that and didn't pressure us to sign that night. He said - I know I have the best window and the best price. Take your time, meet with other companies and give me a call when you're ready to sign. That's confidence. We met with other window companies and their products were good, but not better than, Keystone's and the prices were significantly higher.
When I called to check on the order status, I mentioned that 1. we were very anxious to get the windows as soon as we could and 2. that we'd need to be here the day they installed the LR windows b/c our dogs would have to be outside that day and we had to keep an eye on them in the yard. The windows were due in Monday the 19th and installation would be sched. after they arrived. Installation was estimated around the end of Nov.
This past Tuesday, Charles from Keystone called to ask if they could install the windows Black Friday & Saturday. We were surprised they were working on a holiday weekend but were thrilled to get them in a week earlier than anticipated. We figured it would take 3 days to do everything.
Promptly at 8 am yesterday Charles & his crew of 3 guys arrived and started removing the windows. My husband & I were astounded at how quickly they worked. It was like a well-oiled machine. In 9 hours yesterday, they got all 21 windows installed and the capping installed on about 9 of them. They were back at 8 am sharp today to finish the capping and caulk the remaining windows - they were done by 1 pm. We couldn't believe it only took a day-and-a-half!
I worked in the fenestration industry for 8 years so I can tell a quality product from one that looks pretty but may not perform too well. The windows are fabulous! Our neighbor has the most god-awful noisy car that he needs to rev up for 10 min every morning so it won't stall out. Didn't hear it or the noisy motorcycles that like to race down our street! It's so quiet in the house now and we've noticed how much warmer the house is with the thermostat at the same temp prior to the window replacement.
Now, while we were very happy with the sales process and the product quality, we have to say just how WONDERFUL the installers were. In addition to being very hard workers and competent at their job, those gentleman were so nice and friendly and are great with kids! We have a 9-year old and she watched TV in her room while the windows were being replaced. The installers chatted with her while working on her windows and she was very comfortable having 4 new people in the house for two days. When they finished Friday, there was still work to be done on all the bedroom windows. The installer working on her room reinstalled her blinds (without being asked) so she would have her privacy. That was so thoughtful and we really appreciated it. Upon completion today, the guys again took the initiative to reinstall the blinds in my daughter's room because they knew how excited she was to have her room finished.
After they were finished, we spoke to one of the installers about our very old, drafty front door. It has a stained glass transom and fancy frame molding that we want to preserve. Carlos offered a suggestion about a particular type of door that could be used to replace the current one.
Also, the installers cleaned up the exterior and interior debris at the end of each workday.
We are just SO pleased with Keystone from start to finish. Once again, our Angie's List subscription has been worth every penny!
Response from Keystone Window of Pennsylvania
"Great family and a pleasure to do business with. Those that like a honest, up front, different approach to this industry should call Keystone for no games, gimmicks, false coupons and all the other stuff that goes on out there. The owner handles every sales call and guarantees all work."
Suzanne P.
May 2012
The windows were manufactutred and available earlier than the original estimated 4 weeks. The installers were punctual and did a very professional job. They were very neat and cleaned up when finished. They hauled away the old doors and window at no added cost.
Response from Keystone Window of Pennsylvania
"We appreciate the nice comments and work hard offering great value ever day. Thank you for your business."
Kathy D.
Mar 2012
I was very happy with their services.
Response from Keystone Window of Pennsylvania
"Thank you for recognizing the value we offer every customer. We appreciate your business."
Licensing
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FAQ
Keystone Window of Pennsylvania is currently rated 4.6 overall out of 5.
Keystone Window of Pennsylvania accepts the following forms of payment: CreditCard
Yes, Keystone Window of Pennsylvania offers free project estimates.
No, Keystone Window of Pennsylvania does not offer eco-friendly accreditations.
No, Keystone Window of Pennsylvania does not offer a senior discount.
No, Keystone Window of Pennsylvania does not offer emergency services.
No, Keystone Window of Pennsylvania does not offer warranties.