Evaluate
HVAC, Plumbing & Electrical Decision Guides
Decision guides and cost frameworks for Seattle-area homeowners — weigh repair vs. replacement, compare options, and know what to ask before you book.
How to use this hub
1. Learn
Start with our guides to understand the issue in plain language.
2. Evaluate
Compare options, tradeoffs, and cost drivers before requesting service.
3. Act
Book with context and ask sharper questions during your estimate.
HVAC Decision Guides — Repair, Replace & Costs
View all →How much does an HVAC system cost?
Read guide →Ducted heat pump vs ductless mini-split: which fits your home?
If your home already has sound ductwork, a ducted heat pump is usually the simplest, lowest-cost path to whole-home heat…
Read guide →Heat Pump vs Gas Furnace for Puget Sound Homes
For most Puget Sound homes today, a cold-climate heat pump delivers heating and cooling in one system with lower operati…
Read guide →Ductless Mini-Split vs Central AC in Seattle
Choose ductless when you lack ducts, need zone control, or add a room; choose central AC when you have sound ductwork an…
Read guide →Furnace Repair vs Replacement Decision Guide
Repair when the furnace is under 12 years, the fix is under one-third of replacement cost, and heat exchanger is sound —…
Read guide →AC Replacement Decision Guide
Replacing AC alone makes sense when your furnace is young and sound — but if both are aging, a heat pump replacement oft…
Read guide →Heat Pump Sizing and Manual J Guide
Manual J is the ACCA standard load calculation that sizes HVAC equipment to your home's actual heat loss and gain — skip…
Read guide →Plumbing Decision Guides — Repair vs. Replace
View all →How much does a hot water heater cost?
Read guide →Heat pump vs tankless vs tank water heater: how to choose
A heat-pump (hybrid) water heater is the most efficient option and earns the largest Washington rebates, but it needs sp…
Read guide →Repipe vs Spot Repair Decision Guide
Spot repair fits isolated leaks on otherwise sound pipe — repipe when material is failing system-wide (galvanized, polyb…
Read guide →Tankless vs Tank Water Heater for Puget Sound Homes
Tankless wins on lifespan and space when gas/electrical service supports it; tank wins on upfront cost and simple retrof…
Read guide →Sewer Line Repair vs Replacement
Spot repair or liner works for localized damage on otherwise sound pipe — full replacement when line is collapsed, belli…
Read guide →Slab Leak Detection: Cost and Process
Slab leak detection typically runs [PROOF: Eco detection fee range] before repair — Eco uses acoustic, thermal, and pres…
Read guide →Water Heater Repair vs Replacement
Repair thermostats, elements, or valves on young tanks — replace when tank is corroded, leaking from shell, over 10–12 y…
Read guide →Sump Pump and Backup Options for Washington Basements
Primary sump pumps handle routine groundwater — battery backup or water-powered backup protects during power outages com…
Read guide →Electrical Decision Guides — Panels, EV & Backup
View all →How much does an electrical panel cost?
Read guide →Standby generator vs battery backup vs portable: backup power compared
A standby generator powers your whole home automatically and runs for days on natural gas or propane — best for frequent…
Read guide →Panel Upgrade Decision Guide
Upgrade from 100A to 200A when load calculation exceeds safe capacity, you add EV + heat pump, have fuse box or recalled…
Read guide →EV Charger Installation Guide for the Puget Sound
Level 2 installation includes load calculation, dedicated circuit, wall mount or pedestal, permit, and inspection — budg…
Read guide →Home Generator Sizing Guide for Washington
Size standby generators by critical load list (heat, fridge, sump, lights, medical) — whole-home kW ratings typically ra…
Read guide →Knob-and-Tube Replacement Planning
Full replacement timelines range from days to weeks by home size — budget [PROOF: rewiring range per sq ft] including dr…
Read guide →Rewiring an Older Puget Sound Home: Cost Factors
Rewiring cost depends on square footage, access (crawl vs finished walls), panel upgrade needs, permit jurisdiction, and…
Read guide →Whole-Home LED Lighting Upgrade Guide
LED conversion cuts lighting energy up to 75% — evaluate fixture compatibility (dimmer switches, enclosed fixtures), col…
Read guide →Also see
Why homeowners trust these guides
- We answer the questions homeowners actually ask — in plain English.
- Accurate, real-world advice on HVAC, plumbing, and electrical work.
- Written for Puget Sound homes — our weather, utilities, and older houses.
- Kept up to date, with clear next steps when you're ready to act.