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Verified Reviews for Home Building pros in Williamstown, PA
*The Angi rating for Home Building companies in Williamstown, PA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Home Building needs.
*The HomeAdvisor rating for Home Building companies in Williamstown, PA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Home Building needs.
Last update on December 13, 2025
Find Home builders in Williamstown

D.R. Graybill Services
D.R. Graybill Services
We are a general contracting business with over 30 years of experience with an uncompromising mission to provide superior craftsmanship, dedication and attention to detail that surpasses customers expectation and that creates added value to property and increase satisfaction of ownership. We serve residential and commercial customers and specialize in affordable custom design with expert experience in all areas of the contracting trades from foundation to high quality finish work. We do renovations, remodeling, property restorations, and historic preservation work to the highest standards, no job is too small or large. Over the years our business has had the privilege to served hundreds of satisfied customers and we look forward to working with you. Give us a call, we will never compromise in our efforts to be a company of the highest standards of integrity, transparency, trust, and excellence in all we do and we thank you in advance for contacting us for your project. We remain determined to be the best and to exceed expectations!
"Excellent. Great Consultation"
Cliff A on June 2024
We are a general contracting business with over 30 years of experience with an uncompromising mission to provide superior craftsmanship, dedication and attention to detail that surpasses customers expectation and that creates added value to property and increase satisfaction of ownership. We serve residential and commercial customers and specialize in affordable custom design with expert experience in all areas of the contracting trades from foundation to high quality finish work. We do renovations, remodeling, property restorations, and historic preservation work to the highest standards, no job is too small or large. Over the years our business has had the privilege to served hundreds of satisfied customers and we look forward to working with you. Give us a call, we will never compromise in our efforts to be a company of the highest standards of integrity, transparency, trust, and excellence in all we do and we thank you in advance for contacting us for your project. We remain determined to be the best and to exceed expectations!
"Excellent. Great Consultation"
Cliff A on June 2024

Sentri Homes
Sentri Homes
Sentri Homes is a full-service contractor delivering high-end home additions, whole-home remodels, new custom builds, luxury kitchens, structural framing, roof replacements, and every major renovation. We assign a dedicated project manager to every job, deliver meticulous craftsmanship with clear communication, and back our work with an industry-leading warranty to ensure complete peace of mind on your largest investments. Our in-house team of licensed builders and master craftsmen consistently earns 5-star reviews by turning big visions into stunning, high-value homes—when you need one trusted partner who truly does it all, we’re the proven choice.
Sentri Homes is a full-service contractor delivering high-end home additions, whole-home remodels, new custom builds, luxury kitchens, structural framing, roof replacements, and every major renovation. We assign a dedicated project manager to every job, deliver meticulous craftsmanship with clear communication, and back our work with an industry-leading warranty to ensure complete peace of mind on your largest investments. Our in-house team of licensed builders and master craftsmen consistently earns 5-star reviews by turning big visions into stunning, high-value homes—when you need one trusted partner who truly does it all, we’re the proven choice.

Environmental Testing & Research Laboratories, Inc
Environmental Testing & Research Laboratories, Inc
ETR Laboratories in an analytic laboratory with a broad range of commercial, industrial and individual clients. We provide analytic services using a wide variety of scientific methods including GC/MS, IC/MS, GIR, NMR and SEM equipment. We can do particle analysis, organic and inorganic chemical analysis and micro analysis on biological and other materials. Private water analysis is our specialty. Award winning. Additional DBA - Environmental Testing & Research Laboratories Inc, ETR Labs, ETR Laboratories.
"as advertised"
Nancy C on July 2018
ETR Laboratories in an analytic laboratory with a broad range of commercial, industrial and individual clients. We provide analytic services using a wide variety of scientific methods including GC/MS, IC/MS, GIR, NMR and SEM equipment. We can do particle analysis, organic and inorganic chemical analysis and micro analysis on biological and other materials. Private water analysis is our specialty. Award winning. Additional DBA - Environmental Testing & Research Laboratories Inc, ETR Labs, ETR Laboratories.
"as advertised"
Nancy C on July 2018

Martin Carpentry Inc
Martin Carpentry Inc
* During this time we are only answering calls in the morning. You can schedule a call back for later in the day if you are not able to call in the morning. Visit our website to schedule a call back. We were Founded in 1992, our team is comprised of Knowledgeable and Skilled Carpenters that only use quality materials. We provide superior customer service and specialize in Custom Homes - Additions - Roofing Major Renovations - Kitchens. HIC State license (PA008774) - GAF certification (19360). A+ rating with the Better Business Bureau. Give us a call today!
"From beginning to end, Martin Carpentry Inc exceeded our expectations with communications, professionalism, trust, courtesy, and quality work. We are SO happy with the services we received that we absolutely will be looking to work with them again on our next project! Thank you for everything!"
Michael R on July 2020
* During this time we are only answering calls in the morning. You can schedule a call back for later in the day if you are not able to call in the morning. Visit our website to schedule a call back. We were Founded in 1992, our team is comprised of Knowledgeable and Skilled Carpenters that only use quality materials. We provide superior customer service and specialize in Custom Homes - Additions - Roofing Major Renovations - Kitchens. HIC State license (PA008774) - GAF certification (19360). A+ rating with the Better Business Bureau. Give us a call today!
"From beginning to end, Martin Carpentry Inc exceeded our expectations with communications, professionalism, trust, courtesy, and quality work. We are SO happy with the services we received that we absolutely will be looking to work with them again on our next project! Thank you for everything!"
Michael R on July 2020

Pringle Electric and Building Services
Pringle Electric and Building Services
Your local electrical contractor for central Pa. Keeping your home, business, or shop safe and operating completely according to code. While also looking out for your bottom line, saving you money for things that you really want to spend your money and time on.
"After the circuit breaker panel in our garage failed and caught on fire, I contacted Dave Pringle to assess the damage. He was able to start on the project the following day and kept me updated on the progress he made, explaining various codes and how the components worked in the system when I had questions. I found him to be very knowledgeable and friendly in all our conversations. Dave went above and beyond to ensure our house was once again safe and functioning as it was prior to the fire. For the quality of his work and reasonable prices he charged, I would not hesitate to recommend him for any electrical work you may have. Photos Before: [*** Link removed ***] After: [*** Link removed ***]"
Brian H on March 2018
Your local electrical contractor for central Pa. Keeping your home, business, or shop safe and operating completely according to code. While also looking out for your bottom line, saving you money for things that you really want to spend your money and time on.
"After the circuit breaker panel in our garage failed and caught on fire, I contacted Dave Pringle to assess the damage. He was able to start on the project the following day and kept me updated on the progress he made, explaining various codes and how the components worked in the system when I had questions. I found him to be very knowledgeable and friendly in all our conversations. Dave went above and beyond to ensure our house was once again safe and functioning as it was prior to the fire. For the quality of his work and reasonable prices he charged, I would not hesitate to recommend him for any electrical work you may have. Photos Before: [*** Link removed ***] After: [*** Link removed ***]"
Brian H on March 2018

Lay It Down Tile & Home Improvement
Lay It Down Tile & Home Improvement
Lay It Down Tile & Home Improvement is Owner Operated, and has been in business for almost 15 years. Proudly serving Hunterdon, Somerset, Mercer, Morris, Warren, Middlesex, and Ocean counties, along with eastern Pennsylvania. Our services include, Ceramic tile installation, Kitchen and Bathroom Remodel, Electrical and plumbing services, Hardwood flooring installation and refinishing, Painting, Door and Window installation, Service contracts and Property Management. We combine quality, service, all at the best prices in the area. Call us for a free estimate, and get your project started today!
Lay It Down Tile & Home Improvement is Owner Operated, and has been in business for almost 15 years. Proudly serving Hunterdon, Somerset, Mercer, Morris, Warren, Middlesex, and Ocean counties, along with eastern Pennsylvania. Our services include, Ceramic tile installation, Kitchen and Bathroom Remodel, Electrical and plumbing services, Hardwood flooring installation and refinishing, Painting, Door and Window installation, Service contracts and Property Management. We combine quality, service, all at the best prices in the area. Call us for a free estimate, and get your project started today!
RDY GUTTERS PLUS LLC
RDY GUTTERS PLUS LLC
3 employees. Occasionally uses subs. Cost is determined by the job. No travel charges. No service charges. Extra charge for after hours service. May contact through email. Additional phone numbers - (610) 488-5666 & (610) 587-6281.
3 employees. Occasionally uses subs. Cost is determined by the job. No travel charges. No service charges. Extra charge for after hours service. May contact through email. Additional phone numbers - (610) 488-5666 & (610) 587-6281.
HORVATH HOME IMPROVEMENTS
HORVATH HOME IMPROVEMENTS
Roofing, siding, decks
Roofing, siding, decks
Olde Glory Contractors Inc
Olde Glory Contractors Inc
We are a general contractor who specializes in storm restoration. From roofs, siding, windows and gutters. Interior repairs as well as water mitigation and restoration. When you call Olde Glory Contractors you are calling specialists who deal with insurance companies on a regular basis. Our main goal at Olde Glory Contractors is to use our company's knowledge and friendly staff to assist our customers by providing excellent service and superior products.
"Great people to have work for ya.michael and robin were awesome.. Very good team they have , great service provided. Would highy recomend. Thks so much for a great team. A+++++ to all involved"
Robert B on August 2020
We are a general contractor who specializes in storm restoration. From roofs, siding, windows and gutters. Interior repairs as well as water mitigation and restoration. When you call Olde Glory Contractors you are calling specialists who deal with insurance companies on a regular basis. Our main goal at Olde Glory Contractors is to use our company's knowledge and friendly staff to assist our customers by providing excellent service and superior products.
"Great people to have work for ya.michael and robin were awesome.. Very good team they have , great service provided. Would highy recomend. Thks so much for a great team. A+++++ to all involved"
Robert B on August 2020

Collins Construction, Inc.
Collins Construction, Inc.
Collins Construction has been in business since 1971. We have 8 full-time employees and 3 part-time employees. We are a registered PA Home Improvement Contractor (PAOAGHIC:003749). We are a general construction company with expertise in the following areas: framing (wood); roofing – asphalt shingles, Carlisle rubber, pre-formed standing seam metal; concrete – footers, flat work; plumbing; electrical; small block and drywall jobs; custom cabinets – in-house cabinet shop complete with finish room and spray booth; garage doors – Clopay sectional doors/roll-up doors, commercial and residential operators; CAD operator for design work – we use the Chief Architect program for plans/drawings; and home stand-by generators. We use subcontractors for excavation, HVAC, masonry, painting, roofing, and well-drilling. Most flooring and plaster/veneer/drywall jobs are also subcontracted.
Collins Construction has been in business since 1971. We have 8 full-time employees and 3 part-time employees. We are a registered PA Home Improvement Contractor (PAOAGHIC:003749). We are a general construction company with expertise in the following areas: framing (wood); roofing – asphalt shingles, Carlisle rubber, pre-formed standing seam metal; concrete – footers, flat work; plumbing; electrical; small block and drywall jobs; custom cabinets – in-house cabinet shop complete with finish room and spray booth; garage doors – Clopay sectional doors/roll-up doors, commercial and residential operators; CAD operator for design work – we use the Chief Architect program for plans/drawings; and home stand-by generators. We use subcontractors for excavation, HVAC, masonry, painting, roofing, and well-drilling. Most flooring and plaster/veneer/drywall jobs are also subcontracted.
The Williamstown, PA homeowners’ guide to home building services
From average costs to expert advice, get all the answers you need to get your job done.

While it isn't easy to expand your property, you can consider building up. The cost of adding a second story has quite the range. We'll break it down here.

The cost to convert a vaulted ceiling to a second floor depends on factors such as its size, intended function, materials, and the project's complexity.

If home is where the barn is, a barndominium may be the dream house you’ve been looking for. Here are all the details you need to know about barndominium costs.
•Discover the cost to build a saltbox house. Learn about price factors, regional variations, and ways to save on your saltbox home construction project.

Adding a second story to a house is a great way to get the space you need without uprooting your family. Find out everything you need to know here.

If you are wondering what is builder grade when it comes to renovations, we share the differences and pros and cons every homeowner should know.
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- 🌱 "Mow a small front yard"
- 🛠 "Fix a leaking pipe under the sink"
- 🏠 "Repair shingles on an asphalt roof"





