Smart heating controlsin Harrow, so you heatonly what you need
Control your heating from your phone, heat rooms when they're used, and stop paying to heat an empty home.
20 years' heating experience · Gas Safe 961481
20 years
trade experience
Gas Safe
Registered no. 961481
£10m
public liability cover
24/7
emergency service
10 years
copper pipework guarantee
Service overview
Smart Heating Controls: what it is and when you need it
What it is
Smart heating controls include smart thermostats, programmers and smart radiator valves that let you schedule and adjust your heating from an app.
Who it's for
Busy households, people with changing schedules, landlords managing properties, and anyone wanting better control.
When you need it
When fitting a new boiler, upgrading old controls, or if your heating runs when no one is home.
Why use a professional
Controls must be compatible with your boiler and wired correctly to work well. Poorly set-up controls can make the boiler cycle inefficiently.
The cost of waiting
What happens if you leave it
Old controls often heat the house when nobody is there.
Risks if it's ignored
- Paying to heat empty rooms.
- Uneven temperatures between rooms.
- Boilers cycling on and off inefficiently.
- No way to adjust heating when plans change.
Common mistakes we see
- Buying a thermostat incompatible with the boiler.
- Poor positioning of the thermostat.
- Not setting up schedules properly after installation.
- Ignoring thermostatic radiator valves.
Our process
How we handle your smart heating controls
01
Check compatibility
We confirm which controls suit your boiler and system.
02
Recommend
We suggest the right controls for how you live.
03
Install
We fit and wire the controls safely.
04
Set up
We connect the app and set up schedules.
05
Show you
We walk you through using it.
What you get
The benefits of doing it properly
Control from anywhere
Adjust heating from your phone.
Less waste
Heat rooms when you use them.
More comfort
Consistent temperatures room by room.
Compatible set-up
Matched to your boiler.
Ideal for landlords
Easier management of let properties.
Experienced fitters
20 years in heating.
In detail
Types of smart heating control
Options vary with your system.
Smart thermostats
Replace a room thermostat and programmer with app control and schedules.
Smart radiator valves
Room-by-room control for multi-zone comfort.
Hot water control
On system and regular boilers, schedule hot water separately from heating.
Underfloor and heat pumps
We set up controls for underfloor zones and heat pump systems.
New boiler installs
Upgrading controls alongside a new boiler is the simplest time to do it.
Useful guide
How smart controls cut wasted heating
Traditional programmers run the heating on fixed times, whether or not anyone is home. Smart controls let you change schedules from your phone, turn the heating down when plans change, and in many cases see how much your heating is running.
Room-by-room control is where the biggest gains can come from. A spare bedroom or home office used only part of the day doesn't need heating to the same temperature as a living room. Smart radiator valves or underfloor zones let you set each room separately.
Thermostat position matters. A thermostat in a cold hallway, next to a radiator or in direct sunlight gives misleading readings, so the heating runs too much or too little. We fit controls where they read the temperature accurately.
Compatibility is the most common problem with self-fitted smart thermostats. Some boilers support modulating controls that adjust the boiler's output rather than simply switching it on and off, which can improve efficiency. We check what your boiler supports and recommend controls to match.
For system and regular boilers, smart controls can also schedule hot water separately, so the cylinder is heated before you need it and not left running all day.
For landlords, remote access means you can check a property's heating between tenancies or during cold spells, helping reduce the risk of frozen pipes in an empty home.
Many smart thermostats also offer features such as learning your routine, adjusting for outside temperature, or turning the heating down automatically when everyone has left the house. These can be useful, but only if the controls are compatible with your boiler and set up correctly. We help you choose features that will actually make a difference in your home.
Smart controls do not replace good maintenance. A boiler that needs servicing or a system full of sludge will still waste energy, however clever the thermostat. We look at the whole system and tell you where the biggest gains are.
Smart controls are often fitted alongside a new boiler, when moving to a heat pump, or when adding underfloor heating zones. Doing it at the same time means the wiring and set-up are planned together and the system is commissioned as a whole.
We also replace older programmers and thermostats that have failed or become unreliable. A faulty thermostat or programmer is a common cause of heating not switching on, or staying on when it shouldn't, and is often mistaken for a boiler fault.
After installation, we set up the app, create schedules that suit your routine, and show you how to adjust them. You leave with heating that works around how you live, not the other way round.
If you rent out a property, smart controls with remote access make it easier to keep an eye on heating between tenants and during cold spells, and to set sensible limits for tenants where appropriate.
Why J&L
Why homeowners and landlords call us
J&L Gas & Renewables Limited is a Gas Safe registered heating and gas engineering company based in Harrow, registration number 961481. We bring 20 years of trade experience to every job, from a single repair to a full heating system.
We are approved installers for Worcester Bosch and Vaillant, so new boilers can come with manufacturer warranties of up to 10 years. Copper pipework we install carries a 10-year guarantee, and we carry £10 million public liability cover.
Our pricing is clear: Landlord Gas Safety Certificates cost £75, boiler services start from £100, and a combined certificate and service starts from £150. Installations are quoted individually after a survey. If anything isn't right after an installation, we commit to putting it right until you're fully satisfied.
Local service
Smart Heating Controls across North West London and Hertfordshire
We're based at Banner House, 29 Byron Road, Harrow, and cover homes and rental properties in these areas:
- Harrow
- London
- Watford
- Stanmore
- Radlett
- St Albans
- Bushey
- Rickmansworth
- Hemel Hempstead
- Barnet
- Pinner
- Edgware
- Wembley
- Ruislip
- Northwood
- Borehamwood
- Mill Hill
- Kings Langley
Related services
You might also need
- Boiler InstallationWorcester Bosch and Vaillant approved installs with up to 10-year manufacturer warranties.
- Underfloor Heating Installation & MaintenanceWet underfloor heating installed and maintained for even, comfortable warmth.
- Heat Pump Installation & ServicingAir source heat pump installation and servicing across Hertfordshire and London.
Questions
Smart Heating Controls FAQs
Can't see your question? Call 07843 900760; our emergency heating service runs 24/7.
Will a smart thermostat work with my boiler?
Most boilers can use smart controls, but compatibility varies. We check before recommending.
Can you fit controls with a new boiler?
Yes, it's an ideal time to upgrade them.
Can I control each room separately?
With smart radiator valves or zoned underfloor heating, yes.
Do smart controls work with heat pumps?
Yes, with controls suited to heat pumps.
Do I need Wi-Fi for smart heating controls?
Yes, app control needs a Wi-Fi connection at the property.
Can smart controls control my hot water?
On system and regular boilers with a cylinder, yes.
Do you fit smart thermostats in Wembley and Harrow?
Yes, across Wembley, Harrow and our wider area.
Do you offer a 24/7 emergency service?
Yes. J&L Gas & Renewables runs a 24/7 emergency service for boiler breakdowns and heating faults across Harrow, North West London and Hertfordshire. Call us at any hour and speak to us directly.
Are your engineers Gas Safe registered and insured?
Yes. We are Gas Safe registered (number 961481) and carry £10 million public liability cover. You can check our registration on the Gas Safe Register before we arrive.
How do I pay?
Payment is by bank transfer on invoice. For boiler installations over £2,000 we usually ask for a 50% deposit. Payment timing is agreed with your quote.
Get your smart heating controlssorted by a Gas Safe engineer.
1. You call or send the form
Tell us what you need, your postcode and the best time to reach you. Let us know whether you need an installation, servicing or emergency heating help.
2. You get a clear price
CP12 certificates cost £75, servicing starts from £100 and combined visits start from £150. For bigger jobs, a written quote after we've seen the work, so there are no surprises later.
3. We do the work properly
A Gas Safe registered engineer completes the job, tests it and explains what was done. Payment is by bank transfer on invoice.
Call now for a clear price and a straight answer. Gas Safe registered 961481, £10m insured, 20 years' experience.
