
Serving Downingtown, PA and surrounding areas
Angi Approved
In business since 2019
Free estimates
Small jobs welcome
"Friendly and quick service!"





+109


Serving Downingtown, PA and surrounding areas
Angi Approved
In business since 2019
Free estimates
Small jobs welcome
"Friendly and quick service!"





+109
Serving Downingtown, PA and surrounding areas
Angi Approved
In business since 2013
Free estimates
Offers commercial services
"We are extremely pleased with Keystone Building Services' (KBS) work on our home. Projects were fairly priced; I got other estimates. My roof didn't need replacement, yet rainwater was leaking in my LR. Justin was able to troubleshoot & seal several points on the chimney allowing leaking - stopping the problem. After another Angie's List contractor told me my next project couldn't be done because of joist spacing; KBS came to the rescue. My HVAC unit access was in the ceiling of my BR closet. KBS cleverly saw a way to get access constructed in the adjacent hallway ceiling. The framing blends in perfectly with the other molding. KBS does an excellent job of cleaning up other contractors' messes. After another contractor overcharged me for an incomplete basement drywall demo, mold remediation and poorly done French drain rehab, KBS: located & remediated mold in in another section and improved the water drainage. We're already planning future projects for KBS. "

Serving Downingtown, PA and surrounding areas
Angi Approved
Super Service Award Winner
In business since 2023
Free estimates
Warranties offered
"I would give Phil a 20 star rating. He gave me a brand new kitchen. Put flooring in my living room. Excellent work. I have some more that needs to be done and Phil's the one. He suggests things. Makes it look really nice. "

Serving Downingtown, PA and surrounding areas
Angi Approved
In business since 2025
Free estimates
Credit card accepted
"Happy with the work done. I thought the pricing was reasonable. I would hire them again"


Serving Downingtown, PA and surrounding areas
Angi Approved
In business since 1984
Free estimates
Credit card accepted
"amazing. Perry was so knowledgeable he was amazing to work with such a good person"
Serving Downingtown, PA and surrounding areas
Angi Approved
In business since 2022
Free estimates
Credit card accepted
"Great customer service, easy to work with, and great quality work."
Serving Downingtown, PA and surrounding areas
Angi Approved
In business since 2020
Free estimates
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 the start to the 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.\n





+3
From average costs to expert advice, get all the answers you need to get your job done.

Budget for the cost of trim installation based on factors such as material, finishing, trim type, labor, project size, and more.

Estimate your budget with our guide to trim repair costs covering key factors like damage severity, trim varieties, material selection, and local labor rates.

If you plan to install new crown molding, you’ll need to budget based on the material, size of the room, and local labor rates.

Baseboards are both stylish and functional. If you’re ready to add them to your space, explore the cost to install baseboards and start budgeting here.

Learn what goes into framing a house, including key materials, methods, and tips to help you make informed decisions and build a strong foundation for your future home.

Use this guide to budget for the cost to replace deck railings based on factors such as railing material, labor, permits, and more.