Desk
Energy upgrades
Start with whether the house is leaking and whether the breaker box can take another large load, then read the quote: what they measured, what’s excluded, and whether last year’s tax credit is still in the math.
- Air sealing before insulation
Why you seal the attic floor before you blow cellulose, what Angi prices that line at, which holes actually matter, and how to read a bid that tries to skip it.
- Attic insulation payback without the brochure
What an attic top-up actually costs in 2026, which R-value ENERGY STAR wants for your climate, why the federal 25C credit is gone, and how to read a blown-in bid without buying a brochure payback.
- 200-amp panel upgrade cost: swap vs a real service change
Why a 200-amp panel quote can be $1,300 or $4,000, how to tell a box swap from a service upgrade, and what has to be on the bid before you add a heat pump or charger.
- Cold-climate heat pumps: what the spec sheet hides
Why HSPF2 and a 47°F heating number are the wrong winter test, what ENERGY STAR cold-climate actually requires at 5°F, and how to mark up a bid so the machine still heats on your coldest night.
- Dual-fuel heat pump: when keeping the furnace makes sense
When a heat pump plus the gas furnace you already have is the right bid, what outdoor cutoff to write into the quote, and when hybrid is just a cheap outdoor unit on a furnace you did not need.
- Ducted vs ductless heat pump: which quote is the right job
When to reuse the ducts you already have, when wall heads are cheaper than new sheet metal, and how to read both kinds of bids.
- Heat pump operating cost vs gas
How to tell from your own kWh and therm prices whether a heat pump will cut the heating bill, when cheap gas still wins, and what EnergySage's 2026 state table actually assumes.
- Heat pump water heater vs tank: what the swap actually involves
When a hybrid electric tank is worth the extra install, what ENERGY STAR's savings assume, and what has to be on the quote besides the gallon size.
- HVAC filter size and MERV: measure the slot first
How to read the size on the old filter, what MERV 8 vs 11 vs 13 actually catch, and when a thicker cabinet is the upgrade instead of a tighter 1-inch pad.
- Level 2 EV charger types: plug-in, hardwire, and how many amps
How Level 2 home chargers actually differ: 14-50 vs hardwire, 32 vs 48 amps, J1772 vs NACS, and when a dumb metal box is enough.
- Mini-split for one room vs the whole house
When a single wall head is the cheaper job, when a multi-zone quote is really a whole-house replacement, and how to tell those two bids apart.
- Reading SEER2, HSPF2, and EER2 on a quote
What the 2023 efficiency stickers actually measure, why the numbers look lower than old SEER, which federal minimum applies where you live, and what to ask before you pay extra for a higher rating.
- The tools you need to weatherize doors and windows
A kit for door sweeps, jamb weatherstrip, window V-seal, and the attic hatch. When the gap is a product, and when it is a window quote.
- Heat pump quote checklist
Why two heat-pump prices aren't comparable until they share a load, ducts, winter capacity, and electrical scope, and how to mark up each bid.
- Heat pump vs furnace: how to decide
When one outdoor box that heats and cools makes sense, when keeping the gas furnace is smarter, and what to check on the quote before you pick.
- Level 2 charger and panel upgrade cost
Why the wall box is the cheap part, when you actually need a panel upgrade, and what to ask the electrician on the first visit.
- Weatherize before the heat pump
Why a leaky attic makes you buy a bigger heat pump, what to seal first, and how to get the HVAC bid sized to the house after the attic work.