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Cornerstone Chimney & Masonry

3.8(
10
)
Commercial Chimney or Fireplace Cleaning and Inspection, Clean and Inspect a wood burning stove or pellet stove, Oil-Fired Chimney Cleaning and Inspection Service,

About us

Currently serving the Northshore. Over 20yrs of service. Sweeps, inspections, rip down/rebuilds, cut/point, to a simple brick replacements. Resolving major/minor water issues. For $158.00 all sweeps come with a complete written inspection, report of interior and exterior chimney/Heating systems. Sweeps are performed with the removal of damper(when applicable) for complete access to smoke chamber , firebox and smoke shelf. We are CSIA & NORA certified! Also perform stainless steel liner installations And terra-cotta flue Tile replacements. Chimney restorations, preventative maintenance for the longevity of the Chimney. Installation of stainless steel chimney caps, which are fabricated to size For each individual Chimney crown. Lifetime warranty on all Chimney caps! Also resolve major/Minor draft issues.

Business highlights

Emergency services offered
18 years of experience

Services we offer

CSIA /NORA CERTIFICATIONS, Chimney , exterior/interior repairs, to ripdown/ rebuilds, Chimney restoration professionals, Fireplace/woodstove sweeps with written inspection report., Solving major/minor water issues. Stainless steel chimney caps fabricated to size..

Amenities

Emergency Services

Yes

Free Estimates

Yes

Warranties

Yes

Accepted Payment Methods

  • CreditCard
Reviews
3.810 Reviews
Write a review
Number of StarsImage of DistributionNumber of Ratings
5
70%
4
0%
3
0%
2
0%
1
30%
Write a review

Filter reviews by service

Showing 1-10 of 10 reviews
Dominic Z.
Oct 2025
1.0
Fireplace Cleaning and Inspection
Horrible, horrible, horrible; the owner of this company (Michael Alterio), has stolen a 4,375 dollar deposit from my wife, and I. Postponed the job numerous times after we gave him the deposit, then stopped responding to our calls, and disappeared. He is a CRIMINAL! Don't be fooled by the "positive reviews," on here, folks! One of these people, "Jennifer I.," is listed supposedly as the "owner." Mr. Alterio took his profile picture down, and replaced it with hers, once he realized that the "heat" was on him. THIS BUSINESS IS A SCAM, AND MICHAEL JAMES ALTERIO, IS A FRAUDSTER, AND THIEF!
Dominic Z.
Aug 2025
1.0
Fireplace Cleaning and Inspection
$8,700
Mike Alterio the owner of this company, took a 4,350 dollar deposit from my wife and I, postponed the job four times, and will not return our money. He is running a scam. He also operates under the name "MJ Masonry." If you look it up under Homeadvisor, there are numerous complaints about this guy, doing the same thing to other customers. He's now listing some profile of a woman named "Jen I.," as the "owner." Don't be fooled by this! It's the same people running this criminal operation. We're currently having Michael investigated by the authorities, for fraud, and he will soon be in court. AVOID both Cornerstone Chimney, and MJ Masonry!
Susan Z.
Jul 2025
1.0
Commercial Chimney or Fireplace Cleaning and Inspection
spoke with Michael Alterio on May 16th first encounter, cleaned vacuumed Chimney (200$) paid in full comple. Then discussed repair ,liner for Chimney quoted( 4500$) of which 2250 which was asked for up-front, Also discussed doing back stairs quoted (4200) of which half was asked for (2100) Check # for both are 703 dated 5/17/2025 & 706 dated 5/23/2025 and both cashed .
Joy J.
Jun 2025
5.0
Chimney Cleaning and Inspection
Very conscientious and thorough work. Careful to keep work area clean.
HECTOR M.
Jun 2025
5.0
Chimney Cleaning and Inspection
Great service
Logan R.
May 2025
5.0
Commercial Chimney or Fireplace Cleaning and Inspection
$200
Cornerstone came out to do a fireplace sweep/inspection. They were very clean and thorough. Explain to us that you do not necessarily need a Sweep every year. and to base your Sweeps per 1 cord of wood as a watermark . Now we burn a cord of wood every 2 to 3 years.They were very knowledgeable and honest. other companies that have been out here have persisted that we need to have a Sweep performed every year. Which we now know is not the truth, but in oversell. I will not use another company ever again, but will remain with Cornerstone from this point in into the future
Joe M.
May 2025
5.0
Oil-Fired Chimney Cleaning and Inspection Service
$160,000
Cornerstone came out did a sweep/ inspection. exterior chimney was in rough shape. Loose bricks on roof.they rebuilt top of chimney, new crown and fabricated to size appropriate chimney cap. Restored remainder of exterior chimney for a complete match. Gave me a five year warranty. They were on time and inexpensive. Fast and efficient,professional ,knowledgeable well mannered. Completely cleaned up after themselves. Couldn’t ask for a better result.
Daisy L.
May 2025
5.0
Commercial Chimney or Fireplace Cleaning and Inspection
$159
Mike was not only on time but early. No hassles, right to the point. Great work. Would definitely recommend
Adam E.
May 2025
5.0
Chimney Cleaning and Inspection
$159
Had a great experience. Even scheduled my sweep late in the evening around my work schedule. Researched pricing. They had a discount only $159 for sweep and inspection inspection report. Would highly recommend
Jnnifer I.
May 2025
5.0
Chimney Cleaning and Inspection
$159
Great company that does quality work. The owner is the one who came and did not try to sell me anything I didn’t need. However let me know about issues that could arise in the future.

Licensing

State Contractor License Requirements

All statements concerning insurance, licenses, and bonds are informational only, and are self-reported. Since insurance, licenses and bonds can expire and can be cancelled, homeowners should always check such information for themselves. To find more licensing information for your state, visit our Find Licensing Requirements page.

*Contact business to see additional licenses.

FAQ

Cornerstone Chimney & Masonry is currently rated 3.8 overall out of 5.

Monday: 12:00 AM - 11:59 PM Tuesday: 12:00 AM - 11:59 PM Wednesday: 12:00 AM - 11:59 PM Thursday: 12:00 AM - 11:59 PM Friday: 12:00 AM - 11:59 PM Saturday: 12:00 AM - 11:59 PM Sunday: 12:00 AM - 11:59 PM

Cornerstone Chimney & Masonry accepts the following forms of payment: CreditCard

Yes, Cornerstone Chimney & Masonry offers free project estimates.

No, Cornerstone Chimney & Masonry does not offer eco-friendly accreditations.

No, Cornerstone Chimney & Masonry does not offer a senior discount.

Yes, Cornerstone Chimney & Masonry offers emergency services.

Yes, Cornerstone Chimney & Masonry offers warranties.