Which Insulation Rebate Programs Can Your Address Reach?

Why does this checker ask about your bills instead of your attic?

Because the attic does not decide it. The utility accounts do.

Xcel Energy provides natural gas service across this service area, including Longmont, and provides electric service in Lafayette, Louisville and Niwot. Its rebate keys off the customer's Xcel service and heating fuel, not off the town.

Efficiency Works serves residential electric customers of Longmont Power & Communications, Estes Park Power and Communications, Fort Collins Utilities and City of Loveland Utilities. In this service area that means Longmont addresses only: Lafayette, Louisville and Niwot are Xcel-electric and cannot access the program.

Inside Longmont the test is narrower still. The Efficiency Works path opens only where the project site receives residential electric service from Longmont Power & Communications, and Longmont Power & Communications does not serve the whole city. That is the single most common wrong answer this checker exists to correct: a Longmont mailing address is not the qualifier. The electric account is.

Longmont is also the one town in this service area where an address can sit inside both programs' eligibility at once, because it is the only one Efficiency Works reaches.

What are Xcel Energy’s two eligibility paths?

Xcel publishes two ways in, and they are not the same offer.

The first is homes heated with natural gas or electricity provided by Xcel Energy. The second is homes with Xcel Energy electric service using central air conditioning whose heating fuel is not provided by Xcel Energy — Xcel publishes this as a separate, reduced tier.

Two consequences follow, and both catch people out. Xcel electric service on its own is not the qualifier: the second path also wants central air conditioning. And a home on propane, wood, oil or a delivered fuel is not automatically outside the program — if Xcel provides the electric service and there is central air conditioning, the reduced path is the one to ask about. Which path a home falls under is a thing to confirm with Xcel, not to assume from a bill envelope.

What do these five answers settle, and what do they leave open?

They settle the account. They do not settle the job.

Eligibility has two halves, and this tool sees one of them. The half it sees is whose name is printed on your two bills. The half it cannot see is whether the work itself meets what each body asks for — and a scope that misses that is refused on an account that qualifies.

Take the Xcel half first. The work has to go through a participating Xcel trade partner, and Xcel's own program write-up puts the rebate application in those trade partners' hands alone, so it is worth settling who completes it and who submits it while the quote is still being written. Every measure Xcel rebates carries a qualifying minimum standard too. Air leakage is where that bites hardest: the reduction has to be MEASURED, which means a blower door reading before the work and a second one after it, and Xcel's own program write-up gates the attic and wall insulation rebates on that same reduction rather than on the air sealing line alone. One case escapes it — a home whose first reading already finds it tight enough by Xcel's own measure, which needs neither air sealing nor a second reading and can go straight at the insulation measures. Those two measures answer to R-value standards as well, published on Xcel's own sheet, so an attic already above the pre-job level Xcel sets falls out on that measure however clean the account looks. Getting the testing into the quoted scope beats adding it afterward.

The Efficiency Works half front-loads its gatekeeping instead. That program wants an Efficiency Works Homes listed service provider, and it wants the home assessed by Efficiency Works before an application is made at all. Air leakage testing before and after, plus a combustion safety test, belong in the same quoted scope. Its air sealing payment is stepped by how much measured leakage the finished work removes, so the step is settled by the test after the work and nobody — this tool included — can name it beforehand.

Two programs means two administering bodies, two lists of approved providers and two stacks of paperwork. The full side-by-side of what each one covers and what each one wants is on the Longmont insulation rebates page. This one stops at the account.

Why does this checker refuse to show a rebate amount?

Because a rebate amount printed on a page like this one is wrong the day the program revises it, and the reader has no way to tell. The utility's own page is never stale. So this checker carries no amounts, no per-measure caps and no share-of-cost percentages, and it has no arithmetic in it at all — there is nothing for a stale figure to hide inside.

There is one published statement worth reading in its own words. Efficiency Works' insulation and air sealing incentive sheet prints an “Additional incentives” table with three columns — “Efficiency Works rebate”, “Xcel rebate” and “Total potential incentives” — so the administrator of the electric-side program does publish a combined figure alongside Xcel's. Attribute that to Efficiency Works, because that is whose statement it is: Efficiency Works describing its own program next to Xcel's, not a joint statement by both utilities, and not a claim this page makes about any reader's project. The values in that table are Efficiency Works' to publish and to change; read them there, in the current version of the sheet. The access caveat travels with it — Lafayette, Louisville and Niwot cannot reach Efficiency Works at all, and inside Longmont only an address that Longmont Power & Communications actually serves can.

For current Xcel rebate amounts and program rules, see the Xcel Energy insulation and air-sealing rebates page. For Efficiency Works eligibility and current incentive values, see Efficiency Works home rebates. Eligibility may depend on which electric utility serves your address, program funding levels, and qualifying product specifications.

One scoping note, because five questions about two utilities is not a survey of every program a Longmont-area home might reach. Colorado runs its own Weatherization Assistance Program for income-qualified households, delivered through a local agency rather than through a utility — a route that has nothing to do with either rebate above, with its own rules, its own eligibility test and its own paperwork. Ask the body that runs it, not this page.

Take the next step

What happens after you request a quote?

The first question in a rebate-aware quote is the utility question, because it decides everything downstream: which measures are covered, which testing has to be scheduled before work starts, and whose paperwork the rebate travels on. Have a recent electric bill and a recent gas bill handy for that conversation.

Get My Rebate-Adjusted Quote →

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