# Stateline Masonry & Waterproofing **Trade:** Waterproofing / Foundation · **Address:** 303 Wyman St #300, Waltham, MA 02451, USA · **Phone:** (617) 203-6175 · **Website:** https://www.statelinemasonry.com/ · **Languages:** English **Rating: 4.6/5** (medium confidence) — from 78 reviews across 4 sources. 99% of sentiment-scored reviews read net-positive. Last 6 months: 4 reviews, 0 negative. ## The honest read Stateline Masonry & Waterproofing is a Waltham outfit run by William (sometimes working alongside Denis), with a written record built almost entirely around one voice: dozens of reviewers thank him by name for foundation, chimney, and masonry work across the Boston area. Its Massachusetts home improvement contractor registration is active. In reviews spanning 2024 and 2025, the pattern is consistent: cracked foundations sealed and waterproofed, sometimes paired with a new French drain; chimneys rebuilt crown-to-cap over a day and a half of work; stone facades and brick walls repointed to look 'brand new'; and, in a 2024 review, a fieldstone foundation leak fixed by grinding out loose joints, tuckpointing, and waterproofing the exterior after excavation. Pricing comes up often and favorably — one 2025 review said Stateline came in lowest after the homeowner got five separate estimates, and several others describe quotes that beat competitors. One clear exception stands out. In a February 2025 review, a customer described the opposite experience: only half the agreed work completed, a price that 'skyrocketed' partway through, and calls that went unanswered — calling the company scammers. It's the only negative account in an otherwise long, consistent run of praise, but it's a serious one worth asking about directly, including getting the full scope and price locked down in writing before work starts. This is a fit for foundation, chimney, and masonry repair specifically — cracks, waterproofing, repointing, retaining walls — with William personally involved on most jobs; get everything in writing given the one sharply different account on file. **Strengths:** - Named owner on every job — William personally communicates and follows up - Competitive pricing — often beats other quotes homeowners collected - Wide masonry range — foundations, chimneys, retaining walls, facades **Concerns:** - Serious complaint — a 2025 review alleged incomplete work and unresponsiveness ## Claims & citations Every claim below is backed by real evidence rows — uncited claims are dropped in code before publication. - Massachusetts HIC registration verified active _(confidence: high)_ - [State License Registry](https://contractorhub.mass.gov/s/hic-contractor-search) — “MA hic license 213297 verified active” - Foundation cracks sealed and waterproofed, sometimes with a new French drain _(confidence: high)_ - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT25GaFMwNUhOVmd6UmprNFYzaElkV3QyVVZkaU1GRRAB!2m1!1s0x0:0xbb14ea393acf750c!3m1!1s2@1:CAIQACodChtycF9oOnFhS05HNVgzRjk4V3hIdWt2UVdiMFE%7C%7C?hl=en) — “5★ Thank you to William and the stateline team for waterproofing our basement + installing a french drain in our yard 5 STARS !WE ARE SO HAP…” - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VLZlVzZm40c3FfR19RRRAB!2m1!1s0x0:0xbb14ea393acf750c!3m1!1s2@1:CIHM0ogKEKfUsfn4sq_G_QE%7C%7C?hl=en) — “5★ We had our foundation crack's repaired and waterproofed with state line masonry ..thank you William !” - Chimneys rebuilt crown-to-cap and restored to like-new condition _(confidence: high)_ - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT25OM2NuZDNPVFZYV2tJeGVVbEJPVmRXT0hkWWMyYxAB!2m1!1s0x0:0xbb14ea393acf750c!3m1!1s2@1:CAIQACodChtycF9oOnN3cnd3OTVXWkIxeUlBOVdWOHdYc2c%7C%7C?hl=en) — “5★ State Line did great work in restoring our chimney back to new! William and his crew are courteous and dedicated hard working professiona…” - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSUNINE92VU9nEAE!2m1!1s0x0:0xbb14ea393acf750c!3m1!1s2@1:CIHM0ogKEICAgICH4OvUOg%7C%7C?hl=en) — “5★ They worked hard for a day and a half grinding out the old mortar, putting in new, redid the cement crown, caulked around both sides, put…” - Stone facades and brick walls repointed to look brand new _(confidence: high)_ - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VObjA1LUMtb2YyQWJBEAE!2m1!1s0x0:0xbb14ea393acf750c!3m1!1s2@1:CIHM0ogKENn05-C-of2AbA%7C%7C?hl=en) — “5★ William and his team did a wonderful job repointing the stone facade on my foundation and stairs. The facade now looks brand new. William…” - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT25OM2NuZDNPVFZYV2tJeGVVbEJPVmRXT0hkWWMyYxAB!2m1!1s0x0:0xbb14ea393acf750c!3m1!1s2@1:CAIQACodChtycF9oOnN3cnd3OTVXWkIxeUlBOVdWOHdYc2c%7C%7C?hl=en) — “5★ State Line did great work in restoring our chimney back to new! William and his crew are courteous and dedicated hard working professiona…” - Frequently underbids competing quotes homeowners collected _(confidence: medium)_ - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnTURBcUx6UDlnRRAB!2m1!1s0x0:0xbb14ea393acf750c!3m1!1s2@1:CIHM0ogKEICAgMDAqLzP9gE%7C%7C?hl=en) — “5★ I had my stone wall, ledge and stairs repaired. The guys worked non stop all day. It all looks amazing. I did my homework and got 5 estim…” - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSURuelk3eFdnEAE!2m1!1s0x0:0xbb14ea393acf750c!3m1!1s2@1:CIHM0ogKEICAgIDnzY7xWg%7C%7C?hl=en) — “5★ Had our foundation waterproofed by William and he did an outstanding job and stayed well below any other quotations we received! Thank yo…” - Owner William personally communicates and checks in through the job _(confidence: high)_ - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT2xkblRWaFNUbXRuZUZWVlp6UnBMVkExUVcxdFNIYxAB!2m1!1s0x0:0xbb14ea393acf750c!3m1!1s2@1:CAIQACodChtycF9oOldnTVhSTmtneFVVZzRpLVA1QW1tSHc%7C%7C?hl=en) — “5★ William and his team did quality work. We needed to take down an old retaining wall and build a new one in its place. We were very happy…” - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSURYejdLenN3RRAB!2m1!1s0x0:0xbb14ea393acf750c!3m1!1s2@1:CIHM0ogKEICAgIDXz7KzswE%7C%7C?hl=en) — “5★ We are Delighted with the quality of work stateline masonry provided for us on our new concrete stair's - left no mess behind and provide…” - A February 2025 review alleged only half the agreed work was done, prices rose mid-job, and calls went unanswered _(confidence: medium)_ - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnTUNncmJMM3RRRRAB!2m1!1s0x0:0xbb14ea393acf750c!3m1!1s2@1:CIHM0ogKEICAgMCgrbL3tQE%7C%7C?hl=en) — “1★ Had a very bad experience with state line they came out to my property did half the work they said they was doing the prices skyrocketed …” - Foundation crack repair and basement waterproofing _(confidence: high)_ - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT25GaFMwNUhOVmd6UmprNFYzaElkV3QyVVZkaU1GRRAB!2m1!1s0x0:0xbb14ea393acf750c!3m1!1s2@1:CAIQACodChtycF9oOnFhS05HNVgzRjk4V3hIdWt2UVdiMFE%7C%7C?hl=en) — “5★ Thank you to William and the stateline team for waterproofing our basement + installing a french drain in our yard 5 STARS !WE ARE SO HAP…” - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUMzXy1ESzBRRRAB!2m1!1s0x0:0xbb14ea393acf750c!3m1!1s2@1:CIHM0ogKEICAgIC3_-DK0QE%7C%7C?hl=en) — “5★ Will’s team did a really nice job for my house brick and basement foundation water-proofing. Highly recommended!” - Chimney repointing, crown, and cap rebuilding _(confidence: high)_ - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUMzd3BEZmtnRRAB!2m1!1s0x0:0xbb14ea393acf750c!3m1!1s2@1:CIHM0ogKEICAgIC3wpDfkgE%7C%7C?hl=en) — “5★ very pleased with the quality work repairing my chimney. Employees did a super job and were very professional.Working area was left clea…” - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSUNINE92VU9nEAE!2m1!1s0x0:0xbb14ea393acf750c!3m1!1s2@1:CIHM0ogKEICAgICH4OvUOg%7C%7C?hl=en) — “5★ They worked hard for a day and a half grinding out the old mortar, putting in new, redid the cement crown, caulked around both sides, put…” - Stone and brick facade repointing _(confidence: high)_ - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VObjA1LUMtb2YyQWJBEAE!2m1!1s0x0:0xbb14ea393acf750c!3m1!1s2@1:CIHM0ogKENn05-C-of2AbA%7C%7C?hl=en) — “5★ William and his team did a wonderful job repointing the stone facade on my foundation and stairs. The facade now looks brand new. William…” - Specializes in Waterproofing / Foundation _(confidence: high)_ - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT25GaFMwNUhOVmd6UmprNFYzaElkV3QyVVZkaU1GRRAB!2m1!1s0x0:0xbb14ea393acf750c!3m1!1s2@1:CAIQACodChtycF9oOnFhS05HNVgzRjk4V3hIdWt2UVdiMFE%7C%7C?hl=en) — “5★ Thank you to William and the stateline team for waterproofing our basement + installing a french drain in our yard 5 STARS !WE ARE SO HAP…” - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUNIbEt2aHF3RRAB!2m1!1s0x0:0xbb14ea393acf750c!3m1!1s2@1:CIHM0ogKEICAgICHlKvhqwE%7C%7C?hl=en) — “5★ We had an issue with water seeping into our basement through the fieldstone foundation during heavy rain. William from Stateline responde…” - Specializes in Masonry _(confidence: high)_ - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sCi9DQUlRQUNvZENodHljRjlvT25OM2NuZDNPVFZYV2tJeGVVbEJPVmRXT0hkWWMyYxAB!2m1!1s0x0:0xbb14ea393acf750c!3m1!1s2@1:CAIQACodChtycF9oOnN3cnd3OTVXWkIxeUlBOVdWOHdYc2c%7C%7C?hl=en) — “5★ State Line did great work in restoring our chimney back to new! William and his crew are courteous and dedicated hard working professiona…” - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VObjA1LUMtb2YyQWJBEAE!2m1!1s0x0:0xbb14ea393acf750c!3m1!1s2@1:CIHM0ogKENn05-C-of2AbA%7C%7C?hl=en) — “5★ William and his team did a wonderful job repointing the stone facade on my foundation and stairs. The facade now looks brand new. William…” - Specializes in Chimney Services _(confidence: high)_ - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUMzd3BEZmtnRRAB!2m1!1s0x0:0xbb14ea393acf750c!3m1!1s2@1:CIHM0ogKEICAgIC3wpDfkgE%7C%7C?hl=en) — “5★ very pleased with the quality work repairing my chimney. Employees did a super job and were very professional.Working area was left clea…” - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChZDSUhNMG9nS0VJQ0FnSUNINE92VU9nEAE!2m1!1s0x0:0xbb14ea393acf750c!3m1!1s2@1:CIHM0ogKEICAgICH4OvUOg%7C%7C?hl=en) — “5★ They worked hard for a day and a half grinding out the old mortar, putting in new, redid the cement crown, caulked around both sides, put…” - Also offers Roofing _(confidence: low)_ - [Google Reviews](https://www.google.com/maps/reviews/data=!4m8!14m7!1m6!2m5!1sChdDSUhNMG9nS0VJQ0FnSUNYNHRHSy1RRRAB!2m1!1s0x0:0xbb14ea393acf750c!3m1!1s2@1:CIHM0ogKEICAgICX4tGK-QE%7C%7C?hl=en) — “5★ Utilized William and team for small roof repair project. They showed up on time and went to work just as fast. Excellent contractor to wo…” ## License Status: **active** (#213297, hic) — verified against the official MA state registry on 2026-07-01, never self-reported. Re-check at the official registry: https://contractorhub.mass.gov/s/hic-contractor-search ## Sources - [Google](https://www.google.com/maps/search/?api=1&query=Stateline%20Masonry%20%26%20Waterproofing&query_place_id=ChIJq9yzqFfFkwERDHXPOjnqFLs): 5.0★ from 115 ratings - [Google Reviews](https://www.google.com/maps/search/?api=1&query=Stateline%20Masonry%20%26%20Waterproofing&query_place_id=ChIJq9yzqFfFkwERDHXPOjnqFLs): Listed on this source - [Official Website](https://www.statelinemasonry.com): 20 yrs in business · Self-reported profile and service details - [Exa](https://www.networx.com/c.stateline-masonry-and-waterproofing): 4 web mentions across the open web (each linked to its source) ## Recent reviews - **5/5 · Google Reviews · David. · 2026-05-28**: Fantastic - **5/5 · Google Reviews · JOHNY Punina · 2026-04-30**: Thank you to William and the stateline team for waterproofing our basement + installing a french drain in our yard 5 STARS !WE ARE SO HAPPY WE FOUND YOU ! - **5/5 · Google Reviews · Ziya Abbasov · 2026-04-23**: I had a great experience with this company. They are true professionals who clearly know what they’re doing. The pricing was very reasonable, and the work was completed quickly without sacrificing quality. The service was excellent from start to finish. Highly recommend them to anyone looking for re… - **5/5 · Google Reviews · Alcor Drew Hilliard · 2026-04-01**: William and his team are quick, responsive, and have high quality work. They have a good eye for aesthetics as well and make sure everything is built to perfect alignment. They turned my rotten old deck area into a beautiful patio over just a few days, and I'm very happy with the result. Fast and st… - **5/5 · Google Reviews · Eddie · 2025-12-12**: Thank you to William & Denis for the amazing work you and your team carried out on our basement & foundation 5 STARS !!! - **5/5 · Google Reviews · wilter sigcha · 2025-12-10**: ⭐️⭐️⭐️⭐️⭐️ - **5/5 · Google Reviews · Sarmila · 2025-11-03**: William and his crew from Stateline did an outstanding job repairing and rebuilding at my mother's house. They started immediately, repairing and waterproofing numerous cracks in the foundation, cement deck, and nearly a caved in ceiling in the storage room. They rebuilt the cement deck and ceiling… - **5/5 · Google Reviews · Noah Mena · 2025-10-30**: very trustworthy business really reliable and I recommend to anyone - **5/5 · Google Reviews · Micah · 2025-10-12**: Thank you william - **5/5 · Google Reviews · Jeff Garabedian · 2025-07-16**: William and his team did quality work. We needed to take down an old retaining wall and build a new one in its place. We were very happy with the project outcome. William was very responsive to emails, making sure he understood the needs, and checking in on the job site frequently. I would recommen… --- Data freshness: last scanned 2026-07-01T17:54:27.735Z. Cite as: Stateline Masonry & Waterproofing — Tavlee (https://tavlee.com/contractor/stateline-masonry-and-waterproofing-waltham) Source: https://tavlee.com/contractor/stateline-masonry-and-waterproofing-waltham