Somerville Three-Decker Mold Removal, Wall Cavity First
On a Somerville two or three family the survey comes before the saw, and knowing that up front is what keeps a week out of your schedule.
Mold Removal quote in Somerville
Tell us what you can see, where the water came from, and whether anything is still wet. That is usually enough for us to say which trade you need, and whether the job is small enough to handle yourself, before anyone comes out.
Would you rather talk it through? Call (315) 640-3590, answered 24/7.
$100 off your first job
Credited by us on your first booked job.
- One credit per customer per property, on your first booked job.
- Valid through December 31, 2026.
Mention this offer when you book. Full terms.
The two protections a rented Somerville building loses
Two protections owners here assume they have are missing on a rented three-decker, and it is worth knowing which before you sign anything. MGL c.142A reaches only pre-existing owner-occupied buildings of one to four dwelling units, so where the owner lives elsewhere there is no Residential Contractor's Guaranty Fund behind the contract at all, and the asbestos exemption is gone for the same structural reason. What you are left with is the written scope, before and after photographs, and the clearance record, and those are worth insisting on rather than treating as admin. Decide the rebuild at the same time: plaster taken off a cellar ceiling does not have to go back as plaster.
What is actually in the cut line
Plaster, lath, layered flooring and pipe insulation. The survey has to reach wall cavities, above ceilings and between floor layers, not only what is visible.
Whether the owner lives in the building
If they do not, the consumer contracting chapter does not apply to the job, so the written scope is the protection instead of a statutory fund.
What goes back, and as what
Material that was penetrated is removed, not cleaned. That is the moment to choose a rebuild a cellar can dry through instead of replacing like for like.
Somerville's building stock and the asbestos gate
Somerville has 59.0 percent of its housing units built in 1939 or earlier and a median year of construction of 1938, with 79.8 percent built before 1980. 55.2 percent of its units sit in two, three and four unit structures, the highest share in this coverage area.
Source: U.S. Census Bureau, American Community Survey 2020-2024 5-year estimates, accessed 2026-09-14
310 CMR 7.15(1) defines owner-occupied single-family residence to exclude rental property, multiple-family buildings and mixed use commercial and residential buildings, so the do-it-yourself asbestos exemption in 310 CMR 7.15(6)(f)3 is not available on a two-family, a three-family or a rented single-family.
Source: Massachusetts Department of Environmental Protection, via Cornell Legal Information Institute, accessed 2026-09-14
MGL Chapter 142A Section 1 defines residential contracting as the reconstruction, alteration, renovation, repair, modernization, conversion, improvement, removal or demolition of, or construction of an addition to, a pre-existing OWNER OCCUPIED building containing at least one but not more than four dwelling units, and defines Owner as a homeowner of such a building or a tenant of it. A building the owner does not occupy falls outside the chapter entirely, so neither the registration duty nor the Residential Contractor's Guaranty Fund reaches it.
Source: Massachusetts General Court, accessed 2026-09-14
310 CMR 7.15(4) requires the owner or operator of a facility containing suspect asbestos-containing material to engage an asbestos inspector before any demolition or renovation and to obtain a written asbestos survey report covering everywhere the work will breach, including wall cavities, areas above ceilings and spaces under and between multiple layers of flooring. The only exception is the owner of an owner-occupied single-family residence doing the work themselves on non-friable material alone.
Source: Massachusetts Department of Environmental Protection, via Cornell Legal Information Institute, accessed 2026-09-14
What mold removal involves in Somerville
What comes out of a 1938 Somerville wall
With 59.0 percent of this city's homes finished in 1939 or earlier and a median build year of 1938, what comes out of a Somerville wall is rarely just drywall. It is plaster on wood lath, layers of old flooring, and pipe insulation running through a cellar ceiling. The regulation that governs that is not a mold rule: 310 CMR 7.15(1) defines owner-occupied single-family residence to exclude rental property and multiple-family buildings, and 55.2 percent of Somerville units sit in two, three and four unit structures. So the do-it-yourself exemption is unavailable on most buildings here, and a written survey by an asbestos inspector has to cover the cavities and the space between floor layers before anyone opens them.
Need the sequence for a three-decker?
Tell us the unit count and who lives there, and we will lay the order out.
What Somerville owners ask before a wall comes open
It is my building but I rent out both floors. Am I covered by the Guaranty Fund?
No. MGL c.142A s.1 confines residential contracting to a pre-existing owner-occupied building of one to four units, so an owner who does not live in the three-decker falls outside the chapter and cannot claim on the Fund. That is a reason to put everything in the written contract, not a reason to skip the contract.
Does the whole building have to be surveyed, or just our unit?
The survey has to cover everywhere the work will breach. If the demolition is confined to one unit and the cellar ceiling below it, that is the scope. We mark the proposed openings before the inspector comes so it gets scoped once rather than twice.
Tell us what has to be opened up
We will say what the survey has to cover before anyone cuts.