What it actually takes to insulate a house in Town and Country: the energy code the city enforces and the attic R-value that comes with it, the permit position, the rebate your address qualifies for, and the vintage of the housing here.
Town and Country runs to about 11 square miles and roughly 11,640 people. It sits about 15 miles west of downtown St. Louis. Around 3,842 housing units sit inside those boundaries, most of them built before anyone measured a house for air leakage. The community dates back to 1950. We cover ZIP codes 63131 and 63017.
No completed job in Town and Country is logged in our records yet, and this page will say so until one is.
The typical home in Town and Country dates to around the mid-1980s. Houses of this vintage usually got batts or blown fibre at whatever the standard of the day was, which is well short of what is recommended now. Most are one top-up away from being right.
The city's 'Estate' and 'Suburban Estate' residential zoning categories favor large-lot single-family construction, exemplified by the Frank Lloyd Wright-designed Theodore A.
Originally a farming settlement called Altheim (1886); incorporated as a village in 1950 and re-incorporated as a fourth-class city in 1975. It is also home to Bellerive Country Club, which hosted the 1965 U.S. Open and the 1992 and 2018 PGA Championships. A real-estate directory lists roughly 183 named private subdivisions inside the city, but individual subdivision names were not independently verified for this file.
Housing from this stretch in Town and Country generally got a real attempt at insulation — a real layer in the attic, batts in the walls — so the argument here is rarely about starting from nothing. It is about the gap between what was standard then and what is recommended now, and about the parts nobody insulated at all. Recurring finds: batts stuffed into the rim joist rather than sealed, insulation missing entirely above a cathedral or tray ceiling, soffit vents blocked solid by insulation blown over them with no baffles, and can lights punched straight through the ceiling plane. A house from this era is usually a top-up plus a day of sealing, not a rebuild.
Town and Country enforces the 2018 IRC Chapter 11 (Energy Efficiency). Chapter 500 of the city code has no Energy Conservation Code article; its nine articles are Building Code, Mechanical Code, Adoption of County Codes, Code Official, Architectural Review, Miscellaneous Building Regulations, Residential Code, Existing Building Code and Property Maintenance Code. Article VII adopts the International Residential Code for One- and Two-Family Dwellings, 2018 Edition, most recently by Ordinance No. 4386 dated 9-28-2020. The amendment table in Section 500.160 amends Chapters 1, 3, 7 and 13 of that code and does not delete or amend Chapter 11, Energy Efficiency, so the 2018 IRC energy provisions stand as written. Article I adopts the 2018 International Building Code for other buildings.
Under that edition the required attic value for new work here is R-49, and walls R-20, or R-13 plus R-5 continuous. For comparison, the Department of Energy recommends R60 for an uninsulated attic in this climate zone and R49 where there are already a few inches up there.
Chapter 11 of the 2018 IRC carries the same envelope requirements as Table R402.1.2 of the 2018 IECC. For climate zone 4 except marine that is ceiling R-49 and wood frame wall R-20 or R-13+5, per the Pacific Northwest National Laboratory Building America Solution Center table of IECC and IRC minimum insulation requirements and NAIMA's 2018 IECC climate zone 4 summary.
Nothing Town and Country publishes settles this. Its permit lists name the work types it cares about, and insulation is not among them in either direction. That is the normal state of affairs across this metro — only a handful of the 45 jurisdictions on this site say anything about it at all. Insulation, air sealing and weatherization are not on the list. The Building Code Quick Reference Sheet states no permit is needed to replace siding without removing sheathing or to replace windows of the same size and type, but says nothing about insulation. So we ask the department directly before the first day on site, and whatever comes back, pulling it is our job rather than yours.
The city publishes no contractor registration or trade licensing requirement for insulation work. Its Business Licenses page states that each business, occupation, trade, merchant and manufacturer within the city must secure a business license unless expressly exempted, with fees of $200 per year for occupied space up to 1,000 square feet plus $0.50 per square foot above that; the page does not say whether a contractor working at a customer's house counts as a business within the city. The contact given for that question is 314-587-2810.
The published number is 314-587-2820. The department page is here.
Permitting is on us, not on you.
Town and Country is on the Missouri side, which for most addresses means Ameren Missouri — and Ameren Missouri does not hand out a straight per-square-foot insulation rebate the way its Illinois sister utility does. What it runs instead is Pay As You Save: a free home energy assessment, then the work installed by a programme partner and paid back through a fixed monthly charge on the electric bill, which cannot exceed 80% of the estimated monthly saving, so the bill still comes down while it is being repaid. No loan and no credit check.
Published incentives inside that programme for the 2026 programme year are $0.20 per square foot on ceiling and attic insulation, $0.06 per square foot on air sealing, and 50% of costs up to $250 per home on duct sealing. Each one has a condition attached, and they matter:
Ameren Missouri also runs CommunitySavers, which installs attic insulation at no charge for income-eligible households. The program operates through December 31, 2026; incentives are dependent on available funds.
Spire, the gas utility on this side, lists furnace, water heater and thermostat rebates on its Missouri rebate page rather than a standalone insulation one. Its published route to attic insulation and air sealing is the same on-bill Pay As You Save programme, which it co-delivers, plus income-based weatherization. If you are a Spire customer it is worth ringing them to ask what is open this year, because that page moves.
If the household income qualifies, the work can be free rather than discounted. St. Louis County is served by Community Action Agency of St. Louis County (CAASTLC) under the Missouri low-income weatherization program — 314-863-0015, details here.
One more, by its absence: the federal 25C credit, which covered 30% of insulation and air sealing up to $1,200 a year, ended for anything placed in service after 31 December 2025. Work finished on or before that date is still claimed on that year's return; nothing done in 2026 is. It should not be in your 2026 price, whoever tells you otherwise — the rebate guide has the detail.
NOAA's 1991–2020 normals put 84.9 nights a year at or below freezing here, and only 19.3 days that never climb back above it. Most freezes in Town and Country thaw the same day, and that daily cycling is what drives moisture into a cold attic. The energy code and rebate guide has the full climate figures.
Town and Country borders Country Life Acres.
Elsewhere in St. Louis County we also cover:
Missouri sets none of this at state level, so the number that was right one municipality over is not automatically right here.
| City | Energy code | Attic R required | Permit to insulate | Building dept. |
|---|---|---|---|---|
| Affton | 2015 IECC | R-49 | Not for an attic top-up | 314-615-5184 |
| Ballwin | Not published | — | Not published | 636-227-2129 |
| Brentwood | 2024 IECC | R-49 | Not published | 314-963-8602 |
| Chesterfield | Not published | — | Not published | 636-537-4000 |
| Clayton | 2021 IECC | R-60 | Not published | 314-290-8463 |
| Creve Coeur | 2015 IECC | R-49 | Not published | 314-872-2500 |
| Des Peres | 2018 IRC ch. 11 | R-49 | Not published | 314-835-6130 |
| Ellisville | 2015 IRC ch. 11 | R-49 | Not published | 636-227-9660 |
| Eureka | 2018 IRC ch. 11 | R-49 | Not published | 636-938-5233 |
| Florissant | 2021 IECC | R-60 | Not published | 314-839-7648 |
| Kirkwood | 2021 IECC | R-60 | Not published | 314-822-5823 |
| Manchester | Not published | — | Not published | 314-615-5184 |
| Maryland Heights | 2015 IECC | R-49 | Not published | 314-291-6550 |
| Mehlville | Not published | — | Not for an attic top-up | 314-615-5184 |
| Oakville | 2015 IECC | R-49 | Not for an attic top-up | 314-615-5184 |
| Richmond Heights | 2024 IECC | R-49 | Not published | 314-646-7658 |
| Unincorporated St. Louis County | 2015 IECC | R-49 | Not for an attic top-up | 314-615-5184 |
| University City | 2018 IECC | R-49 | Not published | — |
| Webster Groves | Not published | — | Not published | 314-963-5300 |
| Wildwood | Not published | — | Not for an attic top-up | 636-458-0440 |
Free assessment, a measured R-value, and photos you keep either way.
The code edition Town and Country enforces sets R-49 for new work. The Department of Energy separately recommends R60 for an uninsulated attic in this climate zone, and R49 where a few inches are already there.
Unresolved on paper. Town and Country names the work types it wants permits for and insulation is not one of them, but nor is it on the exemption list. It gets settled by phone before we schedule, at our end.
For most addresses here the route is Ameren Missouri's Pay As You Save programme, which publishes $0.20 per square foot on ceiling and attic insulation and $0.06 per square foot on air sealing for the 2026 programme year. Both carry conditions: the attic has to start at R-20 or below and reach at least R-38, and the air sealing has to cut leakage by at least 20 percent. The incentives sit inside tier 4 of the programme and need you to have lived in the home for the past twelve months, and they are recovered through a monthly charge on the electric bill rather than paid as a cheque. Income-eligible households can get attic insulation at no charge through CommunitySavers instead. The federal 25C credit ended for work placed in service after 31 December 2025.
The typical home in Town and Country dates to around the mid-1980s. Houses of this vintage usually got batts or blown fibre at whatever the standard of the day was, which is well short of what is recommended now. Most are one top-up away from being right. That figure is an ACS-derived median republished by housing-data services, not a survey of individual houses.
Not yet. We have no completed job logged in Town and Country, and we would rather say so than put a number on this page that is not real.
Neither state licenses insulation contractors as a trade. In Missouri there is no statewide residential code at all, and registration is imposed city by city — several metro municipalities require a contractor to be registered with them before a permit is pulled. What matters more in practice is utility programme enrolment, because that is what decides whether your rebate is real.
Energy code, permit and department details for Town and Country come from the jurisdiction's own published pages and codified ordinances. Rebate figures come from the utility's own published incentive tables and carry the programme year they were verified in. Housing-age figures are ACS-derived medians republished by housing-data services, so treat them as approximate. Sources: ecode360.com · ecode360.com · ecode360.com · town-and-country.org · town-and-country.org · town-and-country.org · basc.pnnl.gov · insulationinstitute.org · en.wikipedia.org · city-data.com · ameren.com · ameren.com · ameren.com · ameren.com · energy.gov. Adopted code editions, department phone numbers and utility rebate amounts all change — confirm with the jurisdiction or the utility before relying on anything here.