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Sold by ME. · David Thomas Mejia, Broker · CA DRE #01448424 · Veteran-owned · San Diego County
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Fix it: DIY or hire a pro

Weatherize your home

Air leaks and water leaks come in through the same gaps. Sealing them lowers your energy bill, keeps rain out and makes the house quieter.

Know the signs

What to look for

Warning signs

  • Drafts around doors and windows
  • Daylight under the front door
  • Water stains under windows after rain
  • High summer or winter energy bills
  • Rooms that never get comfortable

Do it yourself

  • Weatherstrip doors and add door sweeps.
  • Caulk windows, trim and every pipe or wire that goes through the wall.
  • Foam-seal gaps bigger than 1/4 in.
  • Add foam gaskets behind outlet covers on outside walls.
  • Top up attic insulation and seal the attic hatch.
Shop the fix

Supplies for the DIY fix

Tools

Amazon links are affiliate links; we may earn a commission. Store links are for price comparison.

From our job sites

What this looks like on a real job

New window installNew window install
Framing before insulationFraming before insulation
New roof underlaymentNew roof underlayment
New cedar fenceNew cedar fence
Hire a pro

Good, better, best contractor options

Good

Handyman weatherization

$

Caulk, weatherstrip, door sweeps and outlet gaskets in a day.

Better

Energy audit + air sealing

$$

A blower-door test finds hidden leaks; a crew seals the attic and walls and adds insulation. Ask SDG&E about rebates.

Best

Window and door replacement

$$$

Dual-pane windows and new exterior doors with proper flashing. Biggest comfort gain, longest payback.

$ under about $500 · $$ about $500 to $5,000 · $$$ over about $5,000. Rough guide only; every house is different. Get three written bids from licensed contractors.

Need help?

Get a licensed pro referral

Tell us what you are seeing. We will walk the property, tell you honestly if it is a DIY job, and refer licensed partners for the rest.

Jobs that require a contractor's license under California law are referred to CSLB-licensed contractors.

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Broker, not a contractor. David Thomas Mejia is a California real estate broker (CA DRE #01448424), not a licensed contractor. Work that needs a California contractor's license should be done by a CSLB-licensed contractor; check any license at cslb.ca.gov. Cost ranges on this page are general estimates, not bids.

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