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TRUSTED BY DISCOVERY BAY, CA HOMEOWNERS

  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon156
    Verified window services reviews

Find Window pros in Discovery Bay

Avatar for RC&G Handyman Services

RC&G Handyman Services

4.98(
208
)
Approved Pro

RC&G Handyman Services

4.98(
208
)
Approved Pro
Customers say: Super punctual
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
16 years of experience

RC&G is an acronym - it stands for "Richard, Charlene, and the Girls", because it's a great reminder of what I'm working for. I'm Richard and my wife and daughters are the most important thing in the world to me. Also hugely important to me is doing great work in my business as a handyman. I've always been mechanically inclined and good at fixing whatever's broken. With decades of experience, now I'm truly a master handyman. Whatever you need, I'm here to get it done. I respond quickly to contacts and give an accurate estimate. Then I arrive as scheduled, do the job right, and leave your house as clean as I found it. I'm looking forward to meeting you!

"Richard was friendly and kind. He installed our blinds, helped clear our sink, fixed our screen door, and assessed our TV mount— all in an hour. We’d love to work with RC&G. As someone with mini houses fixes and projects it can be intimidating to ask for help, but RC&G showed us most things are fixable."

Sigourney T on November 2025

RC&G is an acronym - it stands for "Richard, Charlene, and the Girls", because it's a great reminder of what I'm working for. I'm Richard and my wife and daughters are the most important thing in the world to me. Also hugely important to me is doing great work in my business as a handyman. I've always been mechanically inclined and good at fixing whatever's broken. With decades of experience, now I'm truly a master handyman. Whatever you need, I'm here to get it done. I respond quickly to contacts and give an accurate estimate. Then I arrive as scheduled, do the job right, and leave your house as clean as I found it. I'm looking forward to meeting you!

"Richard was friendly and kind. He installed our blinds, helped clear our sink, fixed our screen door, and assessed our TV mount— all in an hour. We’d love to work with RC&G. As someone with mini houses fixes and projects it can be intimidating to ask for help, but RC&G showed us most things are fixable."

Sigourney T on November 2025


Avatar for Brothers Home Improvement Inc

Brothers Home Improvement Inc

4.90(
169
)
Approved Pro

Brothers Home Improvement Inc

4.90(
169
)
Approved Pro
Customers say: Super punctual
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
32 years of experience

Family Owned and Operated since 1994. Nine Brothers & Sisters Striving For Your Complete Satisfaction! Energy Efficient, Replacement Windows and Doors. No Subcontractors! No High-pressure Sales! Ranked Among The Top Nationwide by Qualified Remodelers! AAMA Certified and Members of the Better Business Bureau. Quality Craftsmanship. Lifetime Warranties. Save $75 per window & $150 per door. Financing Available.

"I love my new Windows! Gary, window consultant gave a great in home consultation, did demos with actual windows and answered all questions and was thorough. Months later windows are finally installed and they are beautiful and changed the look of my entire house. I highly recommend Brothers if you need new windows and I’m so glad I found them in the Angi app. I had a number of different sub contractors in my house through Lowe’s and other companies I found through google that were quoting me insanely high prices after walking through my house , spending 3 minutes before they gave me my insane estimate. Brothers does windows only, has been in business for 30 years (my window installer, Wes has been with the company for 25 years, so that speaks volumes) so they know what they’re doing and got the windows installed so quickly, they were done in a day. If I ever need new windows again, I’d go with them again and will recommend to any friends and neighbors as well."

Elena M on October 2022

Family Owned and Operated since 1994. Nine Brothers & Sisters Striving For Your Complete Satisfaction! Energy Efficient, Replacement Windows and Doors. No Subcontractors! No High-pressure Sales! Ranked Among The Top Nationwide by Qualified Remodelers! AAMA Certified and Members of the Better Business Bureau. Quality Craftsmanship. Lifetime Warranties. Save $75 per window & $150 per door. Financing Available.

"I love my new Windows! Gary, window consultant gave a great in home consultation, did demos with actual windows and answered all questions and was thorough. Months later windows are finally installed and they are beautiful and changed the look of my entire house. I highly recommend Brothers if you need new windows and I’m so glad I found them in the Angi app. I had a number of different sub contractors in my house through Lowe’s and other companies I found through google that were quoting me insanely high prices after walking through my house , spending 3 minutes before they gave me my insane estimate. Brothers does windows only, has been in business for 30 years (my window installer, Wes has been with the company for 25 years, so that speaks volumes) so they know what they’re doing and got the windows installed so quickly, they were done in a day. If I ever need new windows again, I’d go with them again and will recommend to any friends and neighbors as well."

Elena M on October 2022


California Window & Exteriors, Inc.

4.89(
265
)
Approved Pro

California Window & Exteriors, Inc.

4.89(
265
)
Approved Pro
Customers say: True professional
23 years of experience
Free onsite estimate

California Window & Exteriors, Inc., is your best choice for all of your home improvement needs. My name is Jeffery Petty and I am the owner of the company. I have been in business for over 15 years while carrying my same installer since 1998. Please look at my reviews as I have over 150 with a very high rating which shows longevity and quality.

"I am generally a DIY'r and a while back I purchased six modern windows from a big box store to replace the original aluminum windows in my sixty year old home. I had planned to install them myself with the help of my grandson and we had gotten one installed when he got a job offer, out of state, which he could not pass up. These windows were too heavy and bulky for me to handle myself and my search for an installer happily brought me to Jeff Petty and CW&E. Jeff's crew arrived on time, were polite, clean and efficient and except for a short lunch break, worked straight through to completion. There were no surprises with the price and my family and I are very happy with the results of their work. Whenever I might need help with a similar project, I will call CW&E again."

David C on May 2024

California Window & Exteriors, Inc., is your best choice for all of your home improvement needs. My name is Jeffery Petty and I am the owner of the company. I have been in business for over 15 years while carrying my same installer since 1998. Please look at my reviews as I have over 150 with a very high rating which shows longevity and quality.

"I am generally a DIY'r and a while back I purchased six modern windows from a big box store to replace the original aluminum windows in my sixty year old home. I had planned to install them myself with the help of my grandson and we had gotten one installed when he got a job offer, out of state, which he could not pass up. These windows were too heavy and bulky for me to handle myself and my search for an installer happily brought me to Jeff Petty and CW&E. Jeff's crew arrived on time, were polite, clean and efficient and except for a short lunch break, worked straight through to completion. There were no surprises with the price and my family and I are very happy with the results of their work. Whenever I might need help with a similar project, I will call CW&E again."

David C on May 2024


Avatar for Ripple Home Services - Unlicensed Contractor

Ripple Home Services - Unlicensed Contractor

5.00(
9
)
Approved Pro

Ripple Home Services - Unlicensed Contractor

5.00(
9
)
Approved Pro
1 years of experience
Free onsite estimate

Family owned with several years experience, we work hard to bring each customer the best possible service and quality available. We look forward to working with you on your next project. We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer’s needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job. We welcome your questions and thank you for your interest. Call today!

"Hector was on time, professional and fully engaged. He was quite efficient. He informed me of what the build up and problems were and told me ways to correct the issues. He cleaned up after he completed the job. Great job, Hector!"

Renzo T on October 2025

Family owned with several years experience, we work hard to bring each customer the best possible service and quality available. We look forward to working with you on your next project. We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer’s needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job. We welcome your questions and thank you for your interest. Call today!

"Hector was on time, professional and fully engaged. He was quite efficient. He informed me of what the build up and problems were and told me ways to correct the issues. He cleaned up after he completed the job. Great job, Hector!"

Renzo T on October 2025


Avatar for ACME SUNSHADES ENTERPRISE INC

ACME SUNSHADES ENTERPRISE INC

4.83(
23
)
Approved Pro

ACME SUNSHADES ENTERPRISE INC

4.83(
23
)
Approved Pro
Customers say: Quality work
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
104 years of experience

Our business is built upon providing quality products and services to our customers. On every project we work on, no matter how large or how small, we strive to exceed our customers' expectations every time. When the work is complete and our customers tell us that they would recommend our products and services to anyone, we take it to heart. Acme Sunshades is now a Diamond Certified company. Go to "http://www.diamondcertified.org/report/acme-sunshades-enterprise-inc" to see why we are rated one of the highest in customer service satisfaction. We are very proud of this achievement! Our continuing mission is to uphold the tradition of excellence which has been our signature since 1922.

"It went fine."

Willie D on December 2018

Our business is built upon providing quality products and services to our customers. On every project we work on, no matter how large or how small, we strive to exceed our customers' expectations every time. When the work is complete and our customers tell us that they would recommend our products and services to anyone, we take it to heart. Acme Sunshades is now a Diamond Certified company. Go to "http://www.diamondcertified.org/report/acme-sunshades-enterprise-inc" to see why we are rated one of the highest in customer service satisfaction. We are very proud of this achievement! Our continuing mission is to uphold the tradition of excellence which has been our signature since 1922.

"It went fine."

Willie D on December 2018


Avatar for Prosper Construction Development, Inc.

Prosper Construction Development, Inc.

4.88(
38
)
Approved Pro

Prosper Construction Development, Inc.

4.88(
38
)
Approved Pro
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
13 years of experience

We are a locally owned and operated company that values honesty and integrity, and treats your home as if it were our own. We offer a variety of services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships, and guarantee your satisfaction!

"Fast response and clear communication throughout the process."

Marco T on April 2025

We are a locally owned and operated company that values honesty and integrity, and treats your home as if it were our own. We offer a variety of services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships, and guarantee your satisfaction!

"Fast response and clear communication throughout the process."

Marco T on April 2025


"Very professional company and very clean. Work is top notch and I would recommend them to anyone I come in contact with. Great job"

Ron S on March 2024

Our company is Diamond Certified and rated A+ with the Better Business Bureau. We have many different finance options available.

"Very professional company and very clean. Work is top notch and I would recommend them to anyone I come in contact with. Great job"

Ron S on March 2024


Avatar for America's Dream HomeWorks

America's Dream HomeWorks

4.09(
172
)
Approved Pro

America's Dream HomeWorks

4.09(
172
)
Approved Pro
Customers say: Quality work
25 years of experience
Free onsite estimate

America's Dream HomeWorks Is A Family-Owned Full Service Home Improvement Contractor In California Offering Complete Home Remodeling Services. We Help Homeowners And Property Owners With All Of Their Home Improvement Needs. With The Professional Knowledge And Vast Resources, We Are Able To Provide Our Customers With The Best Products, Unmatched Customer Service And Affordable Prices. Secondary Phone: Secondary 916.739.0996

"They didn't do what they said that they're gonna do. The paint job was spotty and it was unfinished cabinet work. I tried to call them to let know and they never even know who I am."

LeslieAnn G on August 2021

America's Dream HomeWorks Is A Family-Owned Full Service Home Improvement Contractor In California Offering Complete Home Remodeling Services. We Help Homeowners And Property Owners With All Of Their Home Improvement Needs. With The Professional Knowledge And Vast Resources, We Are Able To Provide Our Customers With The Best Products, Unmatched Customer Service And Affordable Prices. Secondary Phone: Secondary 916.739.0996

"They didn't do what they said that they're gonna do. The paint job was spotty and it was unfinished cabinet work. I tried to call them to let know and they never even know who I am."

LeslieAnn G on August 2021


Avatar for Mr. Handyman of Livermore-Pleasanton-Unlicensed Contractor

Mr. Handyman of Livermore-Pleasanton-Unlicensed Contractor

5.00(
8
)
Approved Pro

Mr. Handyman of Livermore-Pleasanton-Unlicensed Contractor

5.00(
8
)
Approved Pro
Customers say: Quick response
30 years of experience
Free onsite estimate

Mr. Handyman is your one-call solution for a wide range of home maintenance and repair needs. Our uniformed technicians are fully insured professionals. We arrive on time in uniform and a marked van with the tools to complete the job right. Mr. Handyman technicians are highly skilled craftsmen with an average of 10 years' experience in the trades. We're home repair and improvement experts, and we are known for the quality of our workmanship and professional reliability so you know the job will be done correctly and efficiently.

"SamakaSaihid"

Victoria S on May 2025

Mr. Handyman is your one-call solution for a wide range of home maintenance and repair needs. Our uniformed technicians are fully insured professionals. We arrive on time in uniform and a marked van with the tools to complete the job right. Mr. Handyman technicians are highly skilled craftsmen with an average of 10 years' experience in the trades. We're home repair and improvement experts, and we are known for the quality of our workmanship and professional reliability so you know the job will be done correctly and efficiently.

"SamakaSaihid"

Victoria S on May 2025


Avatar for McCormick Home Builders, Inc.

McCormick Home Builders, Inc.

4.31(
21
)
Approved Pro

McCormick Home Builders, Inc.

4.31(
21
)
Approved Pro
Customers say: True professional
9 years of experience
Free onsite estimate

MCCORMICK HOME BUILDERS INC We're a locally owned and operated company that values honesty and integrity and treats your home or business as if it were our own. We are experts in all aspects of roofing projects and our services are customizable to each individual project. We specialize in both installations and replacements. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guarantee your satisfaction!

"Leo was very helpful and quick to respond. We’re happy with how our 2 bathrooms turned out. Project was completed within the time promised. Our only complaint is that the workers did not clean up very well. But overall, we’re satisfied and we’ll use them again. "

Yolanda F on October 2025

MCCORMICK HOME BUILDERS INC We're a locally owned and operated company that values honesty and integrity and treats your home or business as if it were our own. We are experts in all aspects of roofing projects and our services are customizable to each individual project. We specialize in both installations and replacements. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guarantee your satisfaction!

"Leo was very helpful and quick to respond. We’re happy with how our 2 bathrooms turned out. Project was completed within the time promised. Our only complaint is that the workers did not clean up very well. But overall, we’re satisfied and we’ll use them again. "

Yolanda F on October 2025

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Windows questions, answered by experts

Mulled windows are no less efficient than individual windows, provided the wall opening is the same size. Larger wall openings filled with glass will always reduce overall energy efficiency, as glass transmits heat more readily than a solid wall. If the windows that are mulled together have the same square footage as individual windows, you might actually see a small decrease in your electric bills, as mulled windows let in more natural light that can reduce interior lighting costs.

Energy-efficient windows are judged on their performance according to a few different factors, including heat transfer, air leakage, light transference, and condensation resistance. If you're unsure whether a window is energy-efficient, look for an ENERGY STAR® label from the U.S. Environmental Protection Agency (EPA). If various products, including windows, meet energy-efficiency standards set by the federal government, the EPA issues this label to help consumers identify energy-efficient products.

In some cases, you might need a permit for a window replacement, which is hard to get if you’re not a professional contractor. You should probably just hire a window replacement company in the first place because the job is complicated and can be dangerous for the average DIYer. You may not even save any money doing it yourself because contractors purchase materials wholesale.

Yes, you can fix windows without replacing them. However, this will depend on the severity of the issue and what your needs are. Minor water damage, broken glass, damaged casing, and worn caulking are usually easy repairs. But if there is excessive damage, the windows are constantly foggy, or the windows are very old, it’s best to consider replacing them. Replacement windows cost between $575 and $1,475 per window, or an average of $850 per window. 

Making a window in a basement larger costs an average of $4,200. You’ll need to pay an average of $550 to have a structural engineer plan the project, $500 to $1,500 for the installation labor, and an average of $2,200 for the excavation and window well installation. The remainder will go toward pulling permits, installing trim, and repairing drywall on the interior.

The Discovery Bay, CA homeowners’ guide to window services

From average costs to expert advice, get all the answers you need to get your job done.

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