About

The questions a contractor's blog will not answer

Search almost any question about a repair estimate and the answer is written by someone who sells that repair. That is not a conspiracy; it is who has the budget to publish. But it means the first page of results for "how to read an HVAC quote" is mostly local contractors explaining why their quote is the good one, and the questions that actually stop a homeowner from signing never get answered.

Three of those questions started this site.

"Is the system on this proposal a real, matched system?" A bid names an outdoor unit, says "matching coil," and prints an efficiency rating in a bold box. Whether that specific outdoor unit, paired with that specific coil and air handler, was ever certified at that rating is a fact you can look up in the AHRI Directory in about four minutes. Nothing in the search results tells you the directory exists, what a reference number looks like, or what it means when the combination is not in there.

"Did I just lose half my parts warranty?" Most equipment manufacturers give a base parts warranty and a longer one — often five years versus ten — that you only get if the unit is registered within 60 or 90 days of installation. The rule turns up online as a single sentence in contractor blog posts, usually without the deadline, sometimes with the wrong one. The document that governs it is a PDF on the manufacturer's own site, and the terms differ by brand, by product line, and by who owns the house. Nobody had opened those PDFs side by side, so this site does.

"Is this line optional, or does the code require it?" Drip edge, ice barrier, and ventilation show up in roofing estimates as upgrades you can decline. Depending on your climate zone and your locally adopted code, some of them are not optional at all, and the shingle manufacturer's own application instructions — the ones your warranty depends on you following — may require more than the estimate includes.

Every guide here ends the same way: with the document you can open yourself, the field you check on it, and what a mismatch means for the bid in your hand.

The order I open documents in

Nothing here rests on a contractor's word for it. Every document below is public, and this is the sequence they get opened in:

• The manufacturer's own documents — installation manuals, specification sheets, and warranty certificates, cited by their form or document number so you can find the same PDF. When a registration deadline or an exclusion matters, the wording is quoted rather than summarised, because "limited lifetime" and "lifetime" are not synonyms and the difference lives in one clause.
• Independent product data — the AHRI Directory for certified equipment combinations, the Department of Energy's regional efficiency standards, and federal rulemaking documents where an effective date decides what you are allowed to buy this year.
• Codes and standards, read as text: the model code section itself, plus the ACCA procedures (Manual J, S, and D) that a load calculation is supposed to follow. Codes are adopted and amended locally, so where an item depends on adoption, the guide says so and sends you to your own building department instead of treating one state's amendment as a national requirement.
• State licensing boards and complaint databases, which are public, free, and almost never mentioned in the material written for homeowners.

Two dates sit on every guide: publication, and the last time I went back through the certificate and the manual. Warranty terms get revised, refrigerant rules land on hard cut-off dates, and code editions turn over on adoption cycles — a guide written before one of those moves is worth less than the PDF it was built from, and the second date is how you tell.

Bram Ellery, no licence in any trade

I'm Bram Ellery. I own a house and a small rental unit, and over the years of collecting estimates for both I fell into a habit that turned into this site: reading the bid next to the manufacturer's installation manual, the warranty certificate, and the code section the line item claims to satisfy. When the three did not agree, the disagreement was always more useful than the price comparison.

I should be precise about what that makes me, because in this subject vagueness is how people get sold things. I hold no contractor's licence, in any trade, in any state. I am not a home inspector, an engineer, or an energy auditor. I have never installed a furnace, replaced a service panel, or set foot on a roof for money. I do not visit anyone's house, and I could not tell you whether your equipment is failing.

The useful part is narrower than that, and it sits exactly where you are standing: I read the paperwork slowly and show you where your own copy of it lives. A homeowner cannot judge whether a heat exchanger is cracked. A homeowner absolutely can check whether the model number on a proposal exists, whether the warranty term quoted matches the certificate, and whether the permit was ever pulled. Those are document questions, and document questions have checkable answers.

What a document check cannot tell you

• It is not construction, engineering, legal, or safety advice, and it replaces nothing: not a licensed contractor, not an inspector, not your building department. Nothing here should be used to decide that work is safe, adequate, or code-compliant.
• It does not review your estimate, tell you which contractor to hire, or contact anyone on your behalf.
• No contractor, manufacturer, home warranty company, or lead-generation network pays anything to appear here — no referral cut, no per-lead fee, no sponsored section — and none ever will. That is the whole reason the answers above are hard to find.
• It does not publish national average cost tables. What a job costs in your county depends on your county, and a number scraped from the internet is worth less than a second written quote. The useful comparison is not price against a national average; it is one bid against another, line by line, and both against the documents.

If a line here doesn't match the document

Manufacturers reissue warranty certificates, AHRI listings get withdrawn, and a code section I quoted may be a cycle behind whatever your jurisdiction adopted. Message me here with the document that says otherwise — the PDF, the form number, the section — and I will read it against the guide. Whatever gets corrected is written on the page and dated, with the old wording named, because a bid you checked against last month's version deserves to know it moved.