Residential insulation permits in Cambridge, MA
10 residential insulation permits issued by Cambridge MA (roof), Cambridge MA (addition/alteration), the 8 weeks ending Oct 16, 2026. Oct 16, 2026 is the latest issue date the source has published.
Quick answer. In the 8 weeks ending Oct 16, 2026, 10 residential insulation permits were issued in Cambridge, MA, according to public records from Cambridge MA (roof), Cambridge MA (addition/alteration). The busiest ZIP codes were 02138 (4 permits), 02139 (3 permits), 02140 (3 permits). The latest permit date published is Oct 16, 2026.
What an insulation permit means in Cambridge
A residential insulation permit is attic, wall or weatherization work already arranged. For an insulation contractor it shows which streets are upgrading efficiency now.
In Cambridge, permits were issued on 8 different days in the window; the most recent were Oct 9, 2026, Sep 22, 2026, Sep 14, 2026. The busiest ZIPs were 02138 (4), 02139 (3), 02140 (3).
By residential insulation permit count, Cambridge ranks #16 of the 17 insulation pages on this site and #2 of 2 in MA.
- Mail the houses around each job.
- Pitch attic work to homes with recent re-roof permits.
- Team up with HVAC contractors where heat pumps are going in.
Other work on the same permits
Share of these 10 permits whose type or description also matches another trade. These are the follow-on and partner trades on Cambridge jobs.
- roofing: 8 permits (80%)
- general remodel: 6 permits (60%)
- windows & doors: 4 permits (40%)
- siding: 3 permits (30%)
Weekly trend
Permits per 7-day period, ending Oct 16, 2026. n/c = not collected yet (before our pipeline started pulling this source). It is not zero. Striped bars are partly collected weeks.
Top permit types
| Permit type / subtype | Permits | Share |
|---|---|---|
| Roof | 5 | 50% |
| Building: Alteration and Addition | 5 | 50% |
Busiest ZIP codes
| ZIP | Permits | Share | 8-wk avg / week |
|---|---|---|---|
| 02138 | 4 | 40% | 1.12 |
| 02139 | 3 | 30% | 0.50 |
| 02140 | 3 | 30% | 0.38 |
8-wk avg / week is the trailing 8-week weekly average we quote in coverage checks for that ZIP and trade. It counts every source in the ZIP and includes permits with unknown use, so it can be higher than this page's residential count.
Type stated in the permit
| Type | Permits | Share |
|---|---|---|
| attic | 1 | 10% |
Parsed from the permit's own type and work text. A permit can state more than one; many state none.
Sample rows
Anonymized: street address, permit number and any names removed. Subscribers get the full row with address, permit number and source link.
| Issued | ZIP | Permit type | Scope | Type | Declared value |
|---|---|---|---|---|---|
| 2026-10-09 | 02140 | Building: Alteration and Addition | roofing + remodel + insulation | not stated | n/a |
| 2026-09-22 | 02139 | Roof | roofing + insulation | not stated | n/a |
| 2026-09-22 | 02138 | Roof | roofing + insulation | not stated | n/a |
| 2026-09-22 | 02139 | Building: Alteration and Addition | roofing + HVAC + plumbing + electrical + windows/doors + siding + remodel + insulation | attic | n/a |
| 2026-09-14 | 02138 | Building: Alteration and Addition | plumbing + electrical + windows/doors + siding + remodel + insulation | not stated | n/a |
| 2026-09-09 | 02140 | Building: Alteration and Addition | roofing + windows/doors + remodel + insulation | not stated | n/a |
Source
- Cambridge MA (addition/alteration): Permit records on data.cambridgema.gov (dataset qu2z-8suj), published by Cambridge MA (addition/alteration). Source dataset. Collected window(s): Aug 22, 2026 – Oct 16, 2026. Last pulled Oct 18, 2026.
- Cambridge MA (roof): Permit records on data.cambridgema.gov (dataset 79ih-g44d), published by Cambridge MA (roof). Source dataset. Collected window(s): Aug 21, 2026 – Oct 15, 2026. Last pulled Oct 18, 2026.
Metric: Residential = the source marks the permit's use as residential (permits with commercial or unknown use are not counted). Insulation = the permit's type or work description matches the Curbside Signal insulation rules. Counts exclude void or cancelled permits. Dates are the jurisdiction's permit issue date. Records are deduplicated on source and permit number. How we count. Part of the Boston-Cambridge-Newton, MA-NH metro: every trade × city page there.
The honest limit. A permit usually means the job is already sold. We say that up front. The value is what happens around it:
- Neighbor marketing around active jobs: same-age houses on the same street.
- Cross-trade follow-on demand: new roof → solar, gutters, insulation; remodel → HVAC, electrical, landscaping, pool; new build → pest, security, landscaping.
- Competitor intelligence: which contractors pull permits where (where the jurisdiction publishes it), and who to recruit as subs.
- Early-stage projects for commercial trades and GC subs.
Follow-on: Re-roofs, re-sides and heat-pump installs are the main upstream signals for insulation.
Other trades in Cambridge, MA
Residential permits in the same window, by trade.
Questions
How many residential insulation permits were issued in Cambridge, MA recently?
10 residential insulation permits in the public records we pulled, the 8 weeks ending Oct 16, 2026. Source: Cambridge MA (roof), Cambridge MA (addition/alteration).
Which Cambridge ZIP codes have the most insulation permits?
02138 (4 permits), 02139 (3 permits), 02140 (3 permits), by residential insulation permit count the 8 weeks ending Oct 16, 2026. 3 ZIP codes had at least one permit.
What is the median declared value of a residential insulation permit in Cambridge?
The source does not publish valuations for these permits.
How do I get the Cambridge insulation permit list, and what does it cost?
Request a free sample for your ZIPs first. ZIP Pack is $29/mo for one trade and up to 5 ZIPs every Monday; Metro Feed is $99/mo for a whole metro and up to 3 trades, with daily alerts. Guarantee on every package: If a weekly file is late or missing, that month is free. If a month delivers under half the 8-week average permit count for your ZIPs and trade, the next month is free.
Cambridge insulation leads, every Monday
Send your trade and ZIP codes. We'll reply with a real sample from the public records we pull, or tell you plainly that we don't cover you yet.