Accreditations

What We’re Certified In & Why It Helps You

Choosing a heating installer is a big decision. Our accreditations give you confidence — not just in what we say, but in what we do.

We hold all the credentials needed to deliver safe, compliant, high-quality work. More than just badges, they’re our guarantee that you’re working with one of the few highly qualified local installers, saving you risk, delays, and extra cost.

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Accreditation
What It Is
Why It Matters for You
Gas Safe Registered
Gas Safe Registered

The UK’s legal and professional standard for gas work — only qualified engineers are allowed to work on gas appliances.

Ensures your gas boiler or system is safe, compliant, and insurable. No risk from unqualified fitter mistakes.

MCS Certified Installer
MCS Certified Installer

The official scheme for low-carbon technologies (like air source heat pumps).

Required to access grant funding (e.g. Boiler Upgrade Scheme). We manage the process – making your upgrade cheaper and smoother.

NAPT (Competent Person Scheme)
NAPT (Competent Person Scheme)

A government-approved scheme for heating, plumbing, electrics.

We self-certify compliance with building regs — fewer hurdles, faster install, no surprise fines.

Renewable Energy Consumer Code (RECC)
Renewable Energy Consumer Code (RECC)

Consumer protection for renewable energy installs.

Transparency in quoting, marketing, and contracting. You know what you’ll get & what you pay.

Boiler Upgrade Scheme (BUS) Approved Installer
Boiler Upgrade Scheme (BUS) Approved Installer

Enables you to claim the government’s £7,500 grant toward heat pump installation.

As one of the few local BUS-approved installers, we do the paperwork for you, reducing your cost and hassle.

IWA Insurance-Backed Warranties
IWA Insurance-Backed Warranties

Warranty insurance that remains valid even if a company ceases trading.

Long-term peace of mind — your installation is protected for years ahead.

25+ Years of Experience
25+ Years of Experience

Decades of local, hands-on work across Norwich & Norfolk.

We understand local homes, quirks, and weather. That local know-how means fewer surprises, quicker installs, better value.

Vaillant Advance Installer
Vaillant Advance Installer

Accredited by Vaillant for expert product knowledge, quality installation, and trusted service.

Ensures expert installation, extended warranties, and reliable performance from Vaillant systems.

A photograph of a toilet and sink fitted by Design Heating

Why These Accreditations Set Us Apart Locally

01
Rare Full Package

Many installers have one or two certifications. We have them all. Few local firms offer the complete set.

02
Lower Costs, Better Reliability

Because we’re local, certified, and don’t have national overheads, you pay less for the same (or better) quality.

03
Hassle-Free Grant Access

With MCS & BUS approval, we handle your BOILER UPGRADE SCHEME application, so you get the grant without delays or risk.

04
Trust & Protection

With standards like RECC, IWA, Gas Safe, you’re protected at every stage: quote, contract, installation, warranty.

Take the Next Step

You don’t need to trust us blindly — our accreditations show we deliver. But seeing is believing.

See how these credentials apply to boilers, heat pumps, etc.

Explore our Heating Systems

Get a tailored proposal based on your home.

Request a Quote

Start by understanding what your home needs.

Book a Heat Loss Survey