Your Investment, Fully Protected

Warranty & Guarantee

When you choose Casa Renewables, you are not just getting a heating system, you are getting complete peace of mind. Every installation is backed by our 5-year workmanship guarantee, plus the full manufacturer warranty on your equipment.

5-Year Workmanship Guarantee

We stand behind every installation we complete. Our 5-year workmanship guarantee covers all labour, pipework, wiring, and connections carried out by our engineers. If anything we have installed develops a fault due to our workmanship, we will come back and fix it at no cost to you.

This is not a limited guarantee buried in small print. It is a straightforward promise: if we fitted it and something goes wrong with our work within five years, we will put it right.

All pipework and plumbing connections

Electrical wiring and controls installation

Refrigerant pipework and brazing joints

System commissioning and setup

Cylinder and buffer tank connections

Radiator and underfloor heating tie-ins

5 Years

Full Workmanship Cover

From the day we commission your system, you have five full years of cover on every aspect of our installation work. No excess, no call-out charges, no hidden fees.

Why Our Guarantee Matters

A heat pump is a significant investment. You deserve to know that the company installing it will be there for you long after the work is done.

MCS Certified

We are an MCS-accredited installer, which means every installation meets rigorous industry standards and qualifies for the £7,500 BUS grant.

Manufacturer Trained

Our engineers are trained and accredited by the brands we install, unlocking the longest manufacturer warranties available.

Long-Term Support

We do not disappear after installation. Our dedicated aftercare team is available throughout your warranty period and beyond.

No Hidden Costs

Our workmanship guarantee has no excess and no call-out charges. If it is our work, we fix it. Simple.

Proper Commissioning

Every system is fully commissioned and tested before handover, ensuring it runs at peak efficiency from day one.

Direct Aftercare Line

You deal directly with us, not a third-party call centre. One phone call and we are on it.

Manufacturer Warranties

On top of our 5-year workmanship guarantee, your equipment is covered by the manufacturer's own warranty. Because we are accredited by these brands, our customers typically receive the longest warranty periods available.

Up to 5 years

Altherma Heat Pumps & Air Conditioning

3 years parts and labour as standard, extendable to 5 years when installed by an accredited Daikin D1+ partner. Covers all factory-fitted components.

Up to 7 years

Ecodan Heat Pumps & Air Conditioning

5 years as standard when registered within 3 months of installation. Extendable to 7 years through accredited installers. Covers all Mitsubishi Electric supplied components.

Up to 7 years

aroTHERM Plus Heat Pumps

5 years manufacturer warranty as standard. Extendable to 7 years through Vaillant Advanced Installer accreditation. Covers compressor, controls and all factory components.

Up to 7 years

Vitocal Heat Pumps

Standard manufacturer warranty with extensions available through Viessmann trained partners. Covers compressor and all factory-fitted parts.

Up to 10 years

Heat Pumps & Air Conditioning

Industry-leading 10-year warranty available through Mi-Pro accredited installation partners. Covers replacement parts and manufacturing defects.

Up to 7 years

Aquarea Heat Pumps

7-year parts and labour warranty when installed by a Panasonic PRO Partner. One of the longest standard warranties in the UK heating sector.

Up to 7 years

EHS Heat Pumps & Air Conditioning

7-year warranty on EHS heating systems when installed by a Samsung Authorised Installer. Warranty resides with the homeowner, not the installer.

Up to 5 years

Therma V Heat Pumps

5 years parts warranty as standard on Therma V range. Covers compressor and all factory components. MCS approved across the full range.

Up to 7 years

Aerona 290 Heat Pumps

7-year guarantee when installed by a trained G1 accredited installer. Covers the complete heat pump unit including compressor.

Up to 7 years

Heat Pumps

2 years standard, extendable to 7 years when a complete Stiebel Eltron system is installed by a trained partner installer.

Up to 7 years

Compress Heat Pumps

Up to 7 years through Worcester Bosch Accredited Installer scheme. Covers all factory-fitted components and compressor.

Manufacturer warranty lengths shown are the maximum available through accredited installer programmes. Actual warranty terms may vary depending on product model, registration requirements, and servicing agreements. We will always confirm the exact warranty applicable to your installation before work begins.

What Happens If Something Goes Wrong?

We have made the claims process as simple as possible. No runaround, no waiting weeks for a response.

Call us

Ring our aftercare team on 020 8087 3395 or email us. Describe the issue and we will assess it straight away.

We diagnose

If it is a workmanship issue, we will schedule an engineer visit at a time that suits you, at no charge.

We fix it

Our engineer resolves the problem. If a manufacturer component is at fault, we handle the warranty claim on your behalf so you do not have to.

Ready to Invest with Confidence?

Every Casa Renewables installation is backed by our 5-year workmanship guarantee and the full manufacturer warranty. Get a free, no-obligation quote today.