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Wet Underfloor Heating Installation & Repairs in Crawley, Horsham & West Sussex

Luxurious, efficient heating from floor to ceiling. Professional wet underfloor heating systems installed and repaired by Gas Safe engineers.

Professional Wet Underfloor Heating Services

Experience the luxury and comfort of underfloor heating in your home. Unlike traditional radiators, underfloor heating provides consistent warmth across your entire floor, creating a comfortable environment from the ground up. No cold spots, no bulky radiators on your walls, just gentle, efficient heat distribution.

At Mend Your Home, we specialize in the installation and repair of wet underfloor heating systems across Crawley, Horsham, Redhill, Reigate, and all surrounding areas in West Sussex and Surrey. Our wet systems use pipes carrying hot water from your boiler or heat pump, making them the most efficient and cost-effective solution for whole-house heating, extensions, and new builds.

Underfloor heating system diagram

Even Heat Distribution
Efficient warmth from floor to ceiling with no cold spots

Why Choose Underfloor Heating?

Even Heat Distribution

No cold spots or hot areas. Gentle warmth rises naturally from the floor, heating the entire room evenly and efficiently.

More Floor Space

No radiators on your walls means more furniture placement options and cleaner, more aesthetically pleasing rooms.

Energy Efficient

Operates at lower temperatures than radiators while providing the same comfort level, reducing energy bills by up to 25%.

Improved Comfort

Warm floors are luxurious. Perfect for bathrooms, kitchens, and living areas. Great for families with young children.

Better Air Quality

Reduces air circulation and dust movement compared to radiators, beneficial for allergy sufferers and respiratory health.

Silent Operation

Completely silent heating system. No boiler noise, no radiator clicks or clanks. Just peaceful warmth.

Wet Underfloor Heating System

How It Works

Wet underfloor heating uses a network of pipes installed beneath your floor. Hot water from your boiler or heat pump circulates through these pipes, gently warming the floor surface. The heat then radiates upwards, warming the entire room efficiently and evenly.

System Components:

  • Insulation boards (to direct heat upwards)
  • Pipe loops (typically 16mm diameter)
  • Manifold (controls water flow to each zone)
  • Programmable thermostat per zone
  • Circulation pump (if not built into boiler)
  • Mixing valve (reduces water temperature)

Best Applications:

  • Whole house heating
  • New build properties
  • Home extensions
  • Large open-plan areas
  • Replacing radiators completely
  • Heat pump installations

Key Advantages

  • Lowest Running Costs: 15-25% cheaper than radiators
  • Energy Efficient: Operates at 35-45°C vs 65-75°C for radiators
  • Works with Heat Pumps: Perfect match for renewable heating
  • Zoned Control: Individual room temperature control
  • Long Lifespan: 50+ years with proper installation
  • Adds Property Value: Attractive feature for buyers
  • No Maintenance: Once installed, virtually maintenance-free
  • Compatible with All Boilers: Gas, oil, or heat pump

Get a Free Quote

Every installation is unique. We provide tailored quotes based on:

  • Room size and layout
  • Floor construction type
  • Number of heating zones
  • Boiler/heat pump compatibility
  • Your specific requirements

Contact us for a free, no-obligation survey and quote tailored to your property.

Call 07960 066300

Our Installation Process

Professional installation from start to finish

1. Free Survey & Quote
We assess your property, discuss your heating requirements, and provide a detailed quote with floor plan design.
2. Floor Preparation
We prepare the sub-floor, add insulation boards to maximize efficiency, and ensure a level surface.
3. System Installation
Install heating cables/mats (electric) or pipe loops (wet system) according to the design plan.
4. Connection & Testing
Connect to power supply or heating system, perform thorough electrical and pressure tests to ensure safety.
5. Thermostat Installation
Install programmable thermostat with zone control for maximum efficiency and comfort.
6. Floor Finish
Apply screed or self-leveling compound (wet systems) or proceed directly to floor finish (electric systems).
7. Final Testing & Handover
Complete system commissioning, demonstrate controls, and provide warranty documentation and user guide.

Compatible Floor Types

Tile & Stone

Excellent - Best heat conductor. Perfect for bathrooms and kitchens. Highly recommended.

Laminate

Very Good - Works well with underfloor heating. Use laminate rated for UFH (check manufacturer specs).

Engineered Wood

Good - Suitable for underfloor heating. More stable than solid wood. Lower temperatures required.

Vinyl / LVT

Good - Compatible with UFH. Ensure it's rated for underfloor heating use.

Solid Wood

Caution - Can work but may warp. Requires specialist advice and lower temperatures.

Carpet

Limited - Low TOG rating required (under 2.5). Reduces efficiency. Better alternatives available.

Underfloor Heating Repairs

Expert diagnostics and repairs for all UFH systems

Common Issues We Fix

  • System not heating: Thermostat faults, power supply issues, broken cables
  • Uneven heating: Air locks in wet systems, damaged heating zones
  • Thermostat problems: Faulty sensors, programming issues, connection faults
  • Leaks (wet systems): Pipe damage, manifold issues, connection leaks
  • High energy bills: Poor insulation, incorrect settings, system inefficiency
  • Slow heat-up: Circulation pump faults, air in system, zone valve issues

Repair Services Include:

  • Fault diagnosis and testing
  • Thermostat repair/replacement
  • Heating mat/cable repair
  • Manifold servicing
  • Circulation pump replacement
  • Leak detection and repair
  • Zone valve replacement
  • System balancing
Call for Repairs

Frequently Asked Questions

How long does underfloor heating take to install?
Electric systems can typically be installed in 1-2 days for a standard bathroom or kitchen. Wet systems take longer (3-5 days) due to floor build-up and screed drying time. We'll provide a detailed timeline during your survey.
Will underfloor heating increase my floor height?
Electric systems add minimal height (3-5mm plus floor finish). Wet systems add more (50-80mm including insulation and screed), which needs to be considered during planning. We can design solutions to minimize floor height increase.
What are the running costs compared to radiators?
Wet underfloor heating typically costs 15-25% less to run than radiators due to lower operating temperatures. Electric systems cost more to run than wet systems but are cheaper to install. We can provide running cost estimates based on your specific installation.
Can underfloor heating be fitted in my existing home?
Yes! Electric underfloor heating is ideal for retrofits with minimal disruption. Wet systems are better suited for renovations or extensions where floors are being replaced anyway. We'll survey your property and recommend the best solution for your situation.
How warm will my floor get?
Floor surface temperatures typically reach 25-28°C, which feels comfortably warm underfoot without being uncomfortably hot. The system is designed to heat the room to your desired air temperature (usually 18-21°C) rather than to heat the floor to the maximum possible temperature.
What happens if the heating system fails?
Electric systems come with manufacturer warranties (typically 10-25 years) and are very reliable. If a fault occurs, we can locate and repair the issue. Wet systems are equally reliable and any leaks can be detected and repaired. We provide comprehensive aftersales support and maintenance.

Transform Your Home with Underfloor Heating

Professional installation and repairs in Crawley, Horsham, Redhill, Reigate & West Sussex

Call: 07960 066300 Book Free Survey