Roof Repair & Replacement Pros in Concord, MA

"Great work from scheduling to the actual install. Paul was a great project manager during the install and answered all of my questions. Would definitely recommend to friends!"

"Manny came out, gave me an estimate and started right away. He noticed that my chimney needed repair, took some pictures and recommend that I hire a brick chimney repair company to fix it."

"Added ridge vent and bathroom vents. Quick, professional, and great communication throughout."

"Friendly, professional and knowledgeable."

"good job on time, polite pro and fair price"

"Our kitchen renovation experience with Threshold was absolutely phenomenal! They transformed our outdated 1956 pink and black kitchen into a stunning, modern grey and white masterpiece. I had initially envisioned white cabinets with white subway tile, but my husband suggested dark grey cabinets with light grey tile, and the result is breathtaking. Their attention to detail exceeded all expectations. One contractor even fixed minor details I wouldn’t have noticed, showing their dedication to perfection. Communication was flawless—I received daily updates, and any questions I had were answered promptly. Every contractor and subcontractor who entered our home was professional, kind, and respectful. We are a bilingual household and the gentlemen that speak Spanish were always so sweet to my young daughter, encouraging her to practice. They promised a 7-9 week timeline but delivered in just 6 weeks! Costs were completely transparent and stayed within the expected range. A highlight was t"

"This was a great experience. Brian was friendly, extremely knowledgeable, and fairly priced. I did substantial research on roofing materials, methods, insulation, airflow, and venting. I have an unusual home in which the entire 2nd floor is all cathedral with no access to any attic or crawl space. I speculated that the previous builder who added the second floor did this wrong and my assumption turned out to be correct. I met and reviewed over a half dozen roofing companies. Some of the reps actually didnâ t do the work, others didnâ t bother climbing up on the roof, one guy tried to tell me the existing venting was alright (it wasnâ t), all had much higher pricing for skylight replacements, and all had much higher quotes for less work. I had one company want to charge $4,000 for installing two new windows and removing 4 skylights and another wanted $8000 per window. Brian came in and charged a fair installation for skylight replacements. His overall pricing was fairer then all the rest. He warned flat out that the venting wasnâ t good due to it being right above the gutter and warned of a possibility of mold forming under the decking. He was absolutely correct. He also went up on the roof to inspect. Brian also wasnâ t trying to upsell us on any unnecessary services and warranties. He also discovered that the cavities were stuffed with insulation and there werenâ t any baffles for airflow. After grilling 6 other roofers for prices and opinions, Brian turned out to be the most experienced, fairest, most personable, and knowledgable out of the whole lot. The job was done in one day and the roof looks outstanding. I wish more contractors provided quality service like this. I canâ t recommend him highly enough. We were very fortunate in finding him."

"After getting 3 estimates to replace leaking roof i hired this contractor as he was the only one to actually get up on the roof before giving an estimate which was in line with the price i expected. His crew was on time, kept up with debri removal and had the job done in two days. I had been considering siding the home as well and had that done by this contractor as well. Very happy with all the work done by both his crews. Highly recommend this contractor for roofing and siding."

"Great service Diamond Construction the salesperson was great and really helped us with his knowledge and experience in choosing the right roof for our house & was very price competitive. The coordinator the job was really good with keeping us update to date with the installation process and the other installers did a fantastic job with installing our new colourbond roof which looks amazing. I would highly recommend Diamond Construction for anyone looking for roofing services, an absolutes pleasure to deal with."