Verified record
Typical Greater Boston range for this kind of work, from regional averages — not a quote from Ranch Roofing. Use it to sanity-check bids, then get the real number in writing.
A square is 100 sq ft of roof surface — bigger than the floor plan because of pitch and overhangs.
Estimated range
$9,000 – $18,600
Typical roofing project around $13,800
Ranch Roofing is an Arlington-based roofing contractor with an active Massachusetts home improvement contractor license and an A+ BBB rating. Run by owner Bob O'Sullivan, the company handles residential and commercial roof replacement, repair, and related work — skylights, ridge vents, chimney flashing, and the occasional gutter or carpentry job — across the greater Boston area. What stands out across years of reviews is what happens after the invoice is paid. Customers describe Ranch coming back — sometimes a decade or more later — to fix warranty-covered problems for free: a raccoon hole patched at no charge on a roof installed 25 years earlier, a ridge vent torn out and replaced within days of a 2025 call on a roof installed back in 2012, and a 15-year labor guarantee honored on a 2008 install when a leak turned up in 2025. One customer's solar-panel supports developed leaks after 10 years, and Ranch came out to fix them without a fight. Installs themselves get similarly specific praise: full roof replacements finished in a day or two, project managers (Ryan and Don show up repeatedly by name) walking homeowners through material and cost options, and crews that clean the site thoroughly before leaving. The company has also taken on larger jobs, including a full re-roof of a condominium complex. The one real blemish in the record is a 2026 review from someone who called twice about a leak and never got a callback — a contrast to how responsive the company is described everywhere else, and worth a follow-up call or two if the office goes quiet. Otherwise, this is a roofer people keep calling back, and the standing offer worth knowing about going in is the 15-year labor guarantee behind a new roof.
“Ranch Roofing was fast and as far as I can tell, good. I contacted a bunch of roofing/siding places and despite one or two coming out to see my place, they were the only ones who got me a quote in a reasonable timeframe.”
“Ranch roofing is an amazing company serving Cambridge, I could go on and on about how great they were. But not sure if they do small jobs”
“Ranch Roofing - I got a pile of quotes ranging from 10k to 25k a couple years ago. The higher pressure companies were always the most expensive.”
Ranch Roofing did a prompt and clean job. Communication was excellent
Ranch Roofing is an excellent roofing company I would highly recommend. From the original work done 10 yrs ago to replace a roof on our Victorian home to the excellent customer service they provided recently to address a missing shingle and vent boot after last years harsh winter they have always been responsive, reasonable, extremely efficient and provided truly reliable high quality services. (the lost shingle is our only thing in 10 years to address) .
We installed a new roof with Ranch Roofing 3 years ago. The price was fair, the quality of the work, and professionalism of the crew were exceptional. They also recommended a great insulation company for blow in insulation and coordinated with them to add blow in insulation from above while the roof was being installed. As a result, we did not have to break our ceilings from inside, saving us a lot of money and hassle. Once we had the new roof, we installed solar panels. Fast forward three years, squirrels made a nest under the solar panels and a hole in the rubber roof under the nest (advice to people with solar panels: install that critter guard around your panels). Our experience with Ranch Roofing was again exceptional. They came to assess the damage immediately, and coordinated the repair work with the solar and pest control companies. They were very professional and helpful and did some extra work for us like removing wet insulation that was under the hole, and cleaning our gutter after the work. They did not charge us for any portion of this repair work. They also gave good recommendations for how to address the water damage inside. Overall, I cannot say enough good things about Ranch Roofing. I would never use any other roofing company and recommend them wholeheartedly.
Ranch roofing expanded a window dormer for us when we first moved in 25 years ago. Then put in a new roof for us some years ago (sometime pre-Covid?) so when a raccoon tore a hole in our roof last week of course we called them. They fixed it within a week free of charge since they said it was their roof. We will forever use them after that.
We had Ranch Roofing complete our roof ten years ago. Hating heights and knowing little about roofs, I called Ranch back to ask a simple question about raccoons. The next thing I know, Bob the owner of the company drives to my house and is up on the roof in no time. Sure enough, it was raccoon damage. Bob fixed the spot and refused to bill me! I have recommended Ranch Roofing to all my friends and family in the Boston area. Bob and his crews truly care for not only the roof, but the people, families, and yes the dogs and cats, under those roofs. Nobody does it better!
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Established 5.0 rating
Drone leak diagnosis4.0
Public-building renovation2.6
Magnetic nail sweeps after cleanup5.0
Takes small jobs others refuse5.0
18 windows replaced in a single day3.1
Same-day ice dam leak response4.9
One-day roof replacements4.1