Heat pump installers in AL6 (Welwyn): MCS-certified directory

How we rank installers

Installers shown above are filtered to those:

• Listed on the official MCS-certified directory (mcscertified.com).
• Approved to certify air-source heat pump installs (cap_air_source_heat_pump = true).
• BUS-registered — meaning they can apply the £7,500 Boiler Upgrade Scheme grant to your install.
• Within a sensible distance of the AL6 (Welwyn) postcode area centroid. We widen the radius automatically if installer density is low in your area.

Ratings come from Google verified reviews, fetched via the official Google Places API with attribution. We show a rating only when it’s current (refreshed in the last 30 days). Installers without a Google Business listing don’t show a rating — we don’t fabricate stars.

What happens when I click “Request a quote”

We don’t hand over your phone number or email to the installer until you decide. The flow:

1. 5-minute property check. Enter your address; we pull your EPC, check Solar / heat-pump suitability based on roof + floor area + heating type.
2. Personalised report. We tell you whether your home is a good fit, indicate sizing + cost ranges, and flag any insulation prerequisites that need clearing for the BUS grant.
3. You decide.If the report says you’re a fit, you can book a meeting directly with the installer you chose. We share your details only then — never automatically.

About AL6 (Welwyn)

Looking for more context on heat pumps in AL6 (Welwyn) specifically — typical install costs, local EPC data, BUS grant eligibility for properties in this area? See our heat pumps in AL6 (Welwyn) guide for the full local picture.

Also in AL6 (Welwyn)

Every service page below is generated from the same local EPC + MCS-installer data as this one — pick whichever matches what you’re researching:

• Heat pumps in AL6 (Welwyn): cost + BUS grant — guide + local EPC data.
• Solar panels in AL6 (Welwyn): cost + payback — guide + local EPC data.
• MCS solar panel installers in AL6 (Welwyn) — directory, distance-ranked.