Surveys booked before 31 May lock in 2026 install pricing. Worth knowing if you're thinking about it.

Gas Safe Registered · F-Gas Certified · CheckATrade Approved · MCS Certified · ★ 4.9 on Google · 25+ years across Surrey & Sussex
For homes in Surrey & Sussex

Modern Air Conditioning Heats & Cools

And is cheaper to run than you'd think.

Modern AC heats and cools, runs on a fraction of the cost of resistive heating, and installs in 1-2 days. We don't sell, we survey - the person who quotes you is the person who installs it.

If you're an existing Denver customer, you're getting first call on May and June survey slots before we open this up more widely. Last summer the diary filled up faster than we could expand it, so this year we're coming to you first.

Before you spend a penny on cooling

Three things worth knowing.

If you only read one section of this page, read this one. It's the same three points on the back of the flyer, and it's how we run every survey.

1

We don't sell, we survey.

Our priority is your satisfaction with the work we do. If AC isn't the right call for your home, we'll tell you straight.

2

Fixed price, in writing, within 48 hours.

No "from £X" pricing. No surprise extras. The number on your quote is the number you pay.

3

Year-round, not just July.

Modern AC heats and cools. Run the numbers against your gas bill before you write it off as a luxury.

Straight answers

What you've probably heard about AC, and what's actually true.

Every homeowner considering AC has heard the same six worries. Here's the honest version of each.

"AC is a luxury and a waste of money in the UK."

Twenty years ago, fair enough - we had three weeks of warm weather a year. We've now had four 30°C+ summers in five years and the trend is going one way. AC is the only system that solves both ends of the year on one install: cooling in summer, lower-cost heating in winter.

"It'll wreck the look of my house."

Modern indoor units are flat and white and fit on a wall above head height. Outdoor units sit at the side or back of the property. We design placement during the survey and you sign it off before we install a thing.

"It'll cost a fortune to run."

The systems we install aren't really "air conditioning" in the old sense - they're air-to-air heat pumps with a cooling mode. In heating mode, running cost is roughly half what your gas boiler is doing per kWh of heat delivered. A SCOP of around 4 on a modern unit means £1 of electricity gives you roughly £4 of heat. Against resistive electric heating, the gap is wider still. In summer, cooling a typical living room costs pennies per hour. We can run real numbers for your specific house at the survey.

"I've heard they're noisy."

A modern indoor unit is about as loud as a quiet fan. Outdoor units are about as loud as a fridge. We'll show you the dB rating of the exact units we'd use during the survey.

"Won't I need pipework through walls?"

One small core hole per indoor unit, about 65mm. That's it. No wet pipework, no floors lifted.

"What if I move in two years?"

Most homeowners we install for stay seven years or more. If you genuinely think you'll move in the next two, we'll tell you it's probably not the right call - and we'll suggest what is.

The process

How this works, start to finish.

Five steps, kept simple. Most AC pages drown in detail here. We won't.

1

Free survey

About 45 minutes on site. We measure rooms, check your power supply, agree where indoor and outdoor units would go.

2

Written quote, 48 hours

Plain English. Total cost, breakdown by room, expected running costs, what's included.

3

You decide

No pressure. No follow-up calls unless you ask for them.

4

Installation

One to two days for most homes. We protect floors, clean up, and walk you through the controls.

5

5 to 7-year warranty

Parts and labour, depending on the system you choose. We're MCS, F-Gas and Gas Safe registered. Annual checks available.

Honest assessment

AC isn't right for every home. Here's a quick test.

By telling you when AC won't work, we earn the right to tell you when it will.

✓ Likely a strong fit

  • You spend evenings in rooms that get too hot in summer.
  • You have south- or west-facing rooms.
  • You currently top up with portable units.
  • You want one system for both heating and cooling.
  • There's a sensible spot for an outdoor unit (about 1m × 0.5m, near a wall).

— Might not be the right fit

  • You only need cooling for less than two weeks a year and don't care about heating.
  • You have no usable outdoor space at all.
  • The home is being demolished or rebuilt within 12 months.
Not sure? That's exactly what the free survey is for. We'll tell you straight whether it's worth pursuing - and if it isn't, we'll say so.
Aaron, Denver Services
A note from Aaron

As the owner of Denver Services my priority is your satisfaction with the work we do. If AC isn't the right call for your home, we'll tell you straight - I'd rather lose a sale than lose a customer by installing something that won't do the job. Same goes for the quote: a fixed price, in writing, with no surprise extras when we turn up. That's how we've always done it, and it's why most of our work comes from existing customers like you.

Aaron

Get started

Find out what your numbers look like.

The most useful next step is a free survey. We'll measure properly, talk through your goals, and put a fixed price in writing within 48 hours. There's no obligation.

We're a family business and we'll give you a straight answer - even if that answer is "AC isn't the right call for your home."

★★★★★ 4.9 average on Google

"Well done job. Danny the fitter came on the arranged day and did a really good job. Kept fully informed and cleaned up every day. Would use again."
— Paul Arscot, Google review

🔒 Your details are kept private and used only to contact you about your enquiry. We are registered with the ICO.

Common questions

Five things people always ask.

Practical questions only. No padding.

How long does the survey take?

About 45 minutes. We measure rooms, check the power supply, agree where indoor and outdoor units would go, and answer your questions on the spot.

Can you fit AC in any room?

Almost always, yes. The main constraint is finding a sensible run for the small refrigerant pipe between the indoor unit and the outdoor unit. We'll work that out on the survey.

How disruptive is install day?

Most homes are 1 to 2 days. We protect floors, work room by room, and clean up. There's no wet pipework and no floors lifted.

What's the warranty?

5 to 7 years on parts and labour, depending on the system you choose. We're MCS, F-Gas and Gas Safe registered. We also offer annual servicing to keep the warranty valid.

What about servicing?

Simple. One annual visit, takes about 45 minutes per unit, keeps the warranty valid and the system efficient.

Ready to find out?

Talk to someone who'll give you a straight answer.

You don't need to decide anything today. The first step is a free survey. We'll tell you whether AC is right for your home, what it would cost, and what it would save you. If it's not the right call for you, we'll tell you that too.

Office hours 8am - 5.30pm, Mon - Fri | 53 Barns Court, Turners Hill Road, Crawley Down, RH10 4HQ

Our Accreditation

Find Us

53 Barns Court, Turners Hill Road,

Crawley Down,

RH10 4HQ

Contact Us

+44 1342 717688

Social Link

Office Hours

Open Time: 08:00 AM

Close Time: 05:30 PM

Working Days: Monday to Friday

Legal

Company Name: Denver Services Ltd

Company No: FRN 1036151

Area We Cover

Surrey, Sussex, Kent, and London

Denver Services Ltd (FRN 1036151) is an Introducer Appointed Representative of TradeHelp Ltd, for the purpose of credit broking introductions only, who are authorised and regulated by the Financial Conduct Authority (FRN 697812). Denver Services Ltd introduce customers to TradeHelp Ltd and do not receive a fee for the introduction. TradeHelp Ltd are a credit broker, not a lender, and offer loans from Novuna Personal Finance, a trading style of Mitsubishi HC Capital UK PLC authorised and regulated by Financial Conduct Authority. Finance options are offered subject to status and credit check, which must be completed before commencement of works. A 14-day cooling off period applies to all applications. If cancelled within 14 days, alternative payment of the full outstanding balance must be made.