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Heat Pump Repairs & Installation in Crawley, Horsham, Redhill & West Sussex

Expert heat pump repair service across West Sussex & Surrey. Fast fault diagnosis, ASHP repairs, servicing & new installations by experienced engineers.

Repair Specialists
All Heat Pump Brands
Fast Response
Same Day Available

Heat Pump Repair Services

Is your heat pump not working? We diagnose and repair all makes and models

Expert Heat Pump Repairs Across West Sussex & Surrey

When your heat pump stops working or isn't performing as it should, you need an experienced engineer who can quickly diagnose and fix the problem. At Mend Your Home, we specialize in heat pump repairs for all major brands including Mitsubishi, Daikin, Vaillant, Samsung, LG, Panasonic, Bosch, and more.

Our heat pump repair service covers Crawley, Horsham, Redhill, Reigate, East Grinstead, Haywards Heath, Burgess Hill, Horley, Epsom, Brighton and all surrounding areas within a 20-mile radius.

Common Heat Pump Problems We Fix:

  • Heat pump not heating - No hot water or heating output
  • Heat pump making noise - Unusual sounds, rattling, or grinding
  • Heat pump freezing up - Ice build-up on outdoor unit
  • Error codes displayed - Fault diagnosis and reset
  • Heat pump losing pressure - Refrigerant leaks
  • Poor efficiency - High electricity bills, low COP
  • Thermostat issues - Controls not responding
  • Fan not running - Outdoor unit problems
  • Defrost cycle problems - Unit stuck in defrost mode
  • Compressor failure - Major component repairs

Heat Pump Brands We Repair

Mitsubishi Daikin Vaillant Samsung LG Panasonic Bosch Worcester Grant Nibe Viessmann + All Others

Need a Heat Pump Repair?

Don't suffer without heating. Call us now for fast, reliable heat pump repairs in your area.

  • Same-day service available
  • All brands repaired
  • Experienced engineers
  • Transparent pricing
  • Parts sourced quickly
Call 07960 066300

Heat Pump Servicing & Maintenance

Regular servicing keeps your heat pump running efficiently and helps prevent costly breakdowns. We recommend annual heat pump servicing to maintain optimal performance and extend the lifespan of your system.

Our Heat Pump Service Includes:

  • Full system inspection and safety checks
  • Clean filters and outdoor unit
  • Check refrigerant levels and pressures
  • Test all electrical connections
  • Verify thermostat and controls operation
  • Check defrost cycle operation
  • Measure system efficiency (COP)
  • Provide service report and recommendations
Warranty Tip: Most heat pump warranties require annual servicing. Keep your warranty valid with our professional service.
Heat pump outdoor unit servicing

Professional heat pump servicing keeps your system running efficiently

Heat Pump Repair Areas We Cover

Fast response heat pump repairs across West Sussex, Surrey & beyond

Crawley Horsham Redhill Reigate East Grinstead Haywards Heath Burgess Hill Horley Epsom Brighton Worthing Dorking Leatherhead Gatwick

We provide heat pump repairs, servicing, and installation within a 20-mile radius of Crawley. If your heat pump has broken down or isn't working properly, call us for fast, reliable repairs.

Heat Pump Installation

As well as repairs, we also install new heat pump systems. Heat pumps are the future of home heating - they extract heat from the air or ground outside your home and use it to heat your property efficiently. Unlike traditional gas boilers, heat pumps run on electricity and can deliver 3-4 times more heat energy than the electrical energy they consume.

At Mend Your Home, we install air source heat pumps (ASHP) across Crawley, Horsham, Redhill, Reigate, and all surrounding areas in West Sussex and Surrey. As experienced heating engineers, we'll assess your property, recommend the right system, and ensure a professional installation that maximizes efficiency and comfort.

Government Grants Available: You may be eligible for the Boiler Upgrade Scheme (BUS), which provides £7,500 towards heat pump installation costs. We can help you apply.
Heat pump system diagram

Renewable Heating Solution
Reduce your carbon footprint and save on energy bills

Benefits of Heat Pumps

Why thousands of homeowners are making the switch

Eco-Friendly

Reduce your carbon footprint by up to 40%. Heat pumps use renewable energy from the air, producing no direct emissions.

Lower Running Costs

300-400% efficient. For every 1kW of electricity used, you get 3-4kW of heat. Significantly cheaper than oil, LPG, and electric heating.

Government Grants

Boiler Upgrade Scheme provides £7,500 towards installation. We handle all grant applications for you.

Year-Round Comfort

Provides consistent heating in winter. Many models can also cool your home in summer as reverse cycle air conditioning.

Future-Proof

With the 2025 gas boiler ban approaching, heat pumps are the sustainable replacement. Get ahead of legislation changes.

Adds Property Value

Improves your EPC rating. Increasingly attractive to eco-conscious buyers. Long-term investment in your property.

Air Source Heat Pumps

How They Work

Air source heat pumps extract heat from the outside air (even when it's cold!) and use it to heat your home and hot water. The outdoor unit contains a refrigerant that absorbs heat from the air, which is then compressed to increase temperature and transferred to your heating system.

System Components:

  • Outdoor unit (air to water heat pump)
  • Indoor unit with controls
  • Hot water cylinder (if required)
  • Heating distribution (radiators or underfloor)
  • Buffer tank (for some installations)
  • Smart thermostat and controls

Best For:

  • Well-insulated properties
  • Homes with space for outdoor unit
  • Properties off gas grid
  • New build homes
  • Replacing oil, LPG, or electric heating
  • Eco-conscious homeowners

Key Features

  • Efficiency: 300-400% efficiency (COP 3-4)
  • Works in Cold: Operates down to -20°C
  • Quiet Operation: Modern units as quiet as a fridge
  • Low Maintenance: Annual service recommended
  • Long Lifespan: 20+ years with proper care
  • Smart Controls: Manage from your smartphone
  • Hot Water: Provides heating and hot water
  • MCS Certified: Required for government grants

Heat Pump Survey & Assessment

Every property is different. We provide:

  • Home survey and assessment
  • Heat loss calculation
  • System design and sizing
  • Grant application assistance
  • Detailed quotation
Call 07960 066300

Our Installation Process

Professional installation from start to finish

1. Home Survey & Assessment
We visit your property to assess suitability, calculate heat loss, recommend system size, and discuss your requirements.
2. System Design & Quote
Detailed system design with equipment specifications, installation plan, and comprehensive quotation including any available grants.
3. Grant Application
We handle your Boiler Upgrade Scheme application, liaising with Ofgem to secure your £7,500 grant.
4. Pre-Installation Works
Upgrade radiators if needed, install hot water cylinder, prepare outdoor unit location, and run new pipework.
5. Heat Pump Installation
Install outdoor unit on concrete base or wall brackets, fit indoor controls, connect to heating system, and wire electrics.
6. System Commissioning
Fill and pressure test system, commission heat pump, set controls, balance radiators, and optimize performance.
7. Handover & Training
Full system demonstration, user guide provided, MCS certificate issued, and manufacturer warranty registered.

Is Your Home Suitable for a Heat Pump?

Ideal Properties

  • Well insulated: Loft and cavity wall insulation
  • Space for outdoor unit: Garden, side passage, or suitable wall
  • Modern windows: Double or triple glazed
  • Underfloor heating: Perfect match for low temperatures
  • Larger radiators: Or space to upgrade them
  • Off gas grid: Ideal replacement for oil/LPG
  • New build: Designed for heat pumps

May Need Upgrades

  • Poor insulation: Should be improved first
  • Small radiators: May need upsizing
  • Single glazing: Recommend upgrading windows
  • No hot water cylinder: Will need one installed
  • Limited space: Compact units available
  • Older property: May need more preparation
  • High heat demand: May need larger unit

Don't worry! We'll assess your property and recommend any necessary upgrades to ensure your heat pump works efficiently.

Frequently Asked Questions

How much does a heat pump cost to install?
Installation costs vary depending on property size, existing heating system, and any required upgrades. With the £7,500 Boiler Upgrade Scheme grant, many homeowners find heat pumps cost-competitive with new boilers. We provide detailed surveys and quotations tailored to your property.
Will a heat pump work in my old house?
Yes! Many older properties successfully use heat pumps. The key is ensuring adequate insulation and potentially upgrading radiators. We'll conduct a heat loss survey to determine what's needed. Some older properties may benefit from improving insulation first to maximize efficiency and comfort.
Are heat pumps noisy?
Modern heat pumps are very quiet, typically around 40-50 decibels (similar to a quiet refrigerator). We carefully position the outdoor unit away from bedroom windows and neighboring properties. Most homeowners report they barely notice the sound once installed.
Will I save money with a heat pump?
Heat pumps are 300-400% efficient compared to gas boilers at 90-95%. Savings depend on what you're replacing - typically significant savings compared to oil, LPG, or electric heating. Even with gas, many homes see reduced bills, especially with the £7,500 grant reducing upfront costs.
Do heat pumps work in cold weather?
Yes! Modern heat pumps work effectively down to -20°C and below. They're used successfully in Scandinavia and other cold climates. The UK's relatively mild winters are ideal for heat pumps. They maintain consistent performance even on the coldest days.
How long does installation take?
A typical installation takes 2-4 days, depending on your property and whether additional work (like radiator upgrades) is needed. We'll give you a clear timeline during the survey. The grant application process takes 2-4 weeks before installation can begin.

Heat Pump Not Working? Need a Repair or New Installation?

Professional heat pump repairs & installation in Crawley, Horsham, Redhill, East Grinstead & West Sussex

Fast Repairs | All Brands | £7,500 Grant for New Installations

Call: 07960 066300 Book Service