For homeowners
Your one-stop shop for home energy upgrades.
Get the expertise you need in one clear plan. Gadder shows which upgrades are right for your home, what they may cost, how much they may save, and connects you with advisors, suppliers, and financing.
Get started now
Start with your address
Enter your address, and we will use available property data as the starting point for your plan.
Free to start—continue directly to your energy plan
The address search uses the Norwegian Mapping Authority's address service. How we handle your data.
Partnership and trust
Developed with leading experts. Used by homeowners across Norway.
Gadder was developed through collaboration across the energy, construction, finance, and technology sectors, and continues to improve through user feedback.
Partners and customers
Enova
Multiconsult
Boligmappa
Å Strøm
Innovasjon Norge
Agder fylkeskommune
Varmefag
Agdertak
Etterisolering Agder
Energipakka
Effy
Energitiltaket
What homeowners are saying
- ★★★★★
«This is absolutely brilliant! I recommend that everyone see which upgrades they can make to their home.»
- ★★★★★
«An impressively good service!»
- ★★★★★
«I came across Gadder's website, became curious, and was very pleasantly surprised.»
From questions to a plan you can act on
You do not need to be an expert in energy or buildings. Gadder makes complex expertise easy to use and connects you with professionals whenever you need them.
01
Tell us about your home
Enter your address, and we will use available data as a starting point. Complete your home profile with a few simple answers.
02
Get your upgrade plan
Gadder identifies the upgrades that fit your home, including the estimated cost, savings, and impact of each one.
03
Publish and receive proposals
Share your plan and receive no-obligation proposals from suppliers who can complete the upgrades, along with financing offers from banks.
04
Make the plan a reality
Choose the support and proposals that work for you, complete the upgrades in the right order, and track the results in your plan.
Home first
A comfortable home, all year long
Energy choices are about more than kilowatt-hours. They can mean steadier temperatures, fewer drafts, lower costs, and a home that is better prepared for the years ahead. Gadder starts with your home and your everyday life.
Everything you need to move forward
Gadder brings expertise, decision-ready information, and next steps together in one place—from your first question to completed upgrades.
Expert guidance, made simple
Available data and the information you provide become a clear plan showing which upgrades fit your home and why.
Proposals from suppliers
Publish your plan and let suppliers come to you with proposals for the upgrades. You are free to choose, with no obligation.
Financing from banks
Banks can provide green loan offers directly in your plan, so financing is ready when you are.
A complete view of your savings
See the estimated electricity savings, cost, and payback period for each upgrade, along with its effect on your home's energy rating.
Help from an energy advisor
Bring in an energy advisor when you need detailed calculations, an energy rating, quality assurance, or help with the next step.
Simple. Digital. Cost-effective.
Minutes
from address to finished plan
Expertise
made simple and accessible
Free
to get started
One place
for your plan, proposals, and financing
Free to start. Full access for NOK 69.
Register your home and explore its potential for free. When you are ready to unlock the complete upgrade plan, make a one-time payment for 15 days of full access. The price includes VAT.
Open the energy planFrequently asked questions
Register your home and view its savings potential for free. Full access to the energy analysis and upgrade plan costs NOK 69, including VAT, for 15 days. It is a one-time payment, not a subscription.
Get the energy expertise you need—all in one place
Start with your address and get a plan that makes the right choices easier.