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Public permit data · updated Oct 18, 2026

Residential HVAC permits in Poolesville, MD

15 residential HVAC permits issued by Montgomery County MD (mechanical), 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, 15 residential HVAC permits were issued in Poolesville, MD, according to public records from Montgomery County MD (mechanical). The busiest ZIP codes were 20837 (15 permits). The latest permit date published is Oct 16, 2026.

15
residential HVAC permits, the 8 weeks ending Oct 16, 2026
n/a
median declared value
1
ZIP codes with at least one permit
Oct 16, 2026
latest permit date published
1.9
permits per collected week on average
13
days with at least one permit issued

What an HVAC permit means in Poolesville

A residential HVAC permit is a furnace, A/C, heat pump, mini-split or duct change-out. For an HVAC contractor the install is sold, but same-age homes nearby are on the same replacement clock, and every permit adds the equipment to someone's service-agreement list.

In Poolesville, permits were issued on 13 different days in the window; the most recent were Oct 15, 2026, Oct 13, 2026, Oct 7, 2026. The busiest ZIPs were 20837 (15).

By residential HVAC permit count, Poolesville ranks #83 of the 98 HVAC pages on this site and #16 of 18 in MD.

  • Mail maintenance plans and tune-up offers to the houses around each change-out.
  • Watch heat-pump share by ZIP to see where electrification incentives are moving demand.
  • Pass heat-pump jobs to electricians: many need a panel or circuit upgrade.

See plans for Poolesville HVAC leads

Other work on the same permits

Share of these 15 permits whose type or description also matches another trade. These are the follow-on and partner trades on Poolesville jobs.

  • gas line: 4 permits (27%)
  • pool & spa: 1 permits (7%)

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.

Aug 28Sep 4Sep 11Sep 18Sep 25Oct 2Oct 9Oct 16

Top permit types

Permit type / subtypePermitsShare
MECHANICAL PERMIT / INSTALL SINGLE FAMILY DWELLING960%
MECHANICAL PERMIT / REPLACE SINGLE FAMILY DWELLING533%
MECHANICAL PERMIT / INSTALL RESIDENTIAL ACCESSORY STRUCTURE17%

Busiest ZIP codes

ZIPPermitsShare8-wk avg / week
2083715100%1.88

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.

Equipment stated in the permit

EquipmentPermitsShare
A/C / condenser320%
heat pump320%
mini-split213%
ductwork213%
furnace17%

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.

IssuedZIPPermit typeScopeEquipmentDeclared value
2026-10-1520837MECHANICAL PERMIT / INSTALL SINGLE FAMILY DWELLINGHVACnot statedn/a
2026-10-0720837MECHANICAL PERMIT / REPLACE SINGLE FAMILY DWELLINGHVACheat pumpn/a
2026-09-1820837MECHANICAL PERMIT / REPLACE SINGLE FAMILY DWELLINGHVACheat pumpn/a
2026-09-1420837MECHANICAL PERMIT / INSTALL RESIDENTIAL ACCESSORY STRUCTUREHVAC + pool/spamini-split; A/C / condenser; ductworkn/a
2026-09-1120837MECHANICAL PERMIT / INSTALL SINGLE FAMILY DWELLINGHVACnot statedn/a
2026-09-0920837MECHANICAL PERMIT / REPLACE SINGLE FAMILY DWELLINGHVACfurnace; A/C / condensern/a

Source

  • Montgomery County MD (mechanical): Permit records on data.montgomerycountymd.gov (dataset ih88-a6aa), published by Montgomery County MD (mechanical). Source dataset. Collected window(s): Aug 22, 2026 – Oct 16, 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). HVAC = the permit's type or work description matches the Curbside Signal HVAC 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 Washington-Arlington-Alexandria, DC-VA-MD-WV 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: Remodels and additions drive HVAC, electrical, landscaping and pool work. An HVAC change-out often needs electrical capacity too.

Other trades in Poolesville, MD

Residential permits in the same window, by trade.

Questions

How many residential HVAC permits were issued in Poolesville, MD recently?

15 residential HVAC permits in the public records we pulled, the 8 weeks ending Oct 16, 2026. Source: Montgomery County MD (mechanical).

Which Poolesville ZIP codes have the most HVAC permits?

20837 (15 permits), by residential HVAC permit count the 8 weeks ending Oct 16, 2026. 1 ZIP codes had at least one permit.

What is the median declared value of a residential HVAC permit in Poolesville?

The source does not publish valuations for these permits.

How do I get the Poolesville HVAC 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.

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