Hertfordshire · AL6

Air conditioning in AL6

Our engineers cover all of the AL6 postcode district, including Welwyn, Oaklands and Tewin. Every job starts with a site survey and a fixed-price quote.

Air con across AL6

Our air conditioning service in AL6

A new system normally needs a dedicated circuit from the fuse board. Under Part P, a new circuit is notifiable unless a registered competent person does it, and as NICEIC approved contractors we can install and certify it as part of the job. The work covers multi-split systems, wall-mounted split systems and air-to-air heat pumps, and common reasons people get in touch are a portable unit with a hose out of the window and a room that’s unbearable on warm days.

Our engineers bring the tools, gauges and access equipment the job needs. You only need to give us clear access to the units, or their planned positions, and to the fuse board. On site, the work takes a day for most single-room installations, with multi-split, ducted and cassette systems taking longer.

  1. We survey the property, or work from your pictures for a simple job.
  2. Output, positions and price are settled before anything is booked.
  3. On the day, dust sheets go down and the indoor and outdoor units are fitted.
  4. We run and connect the pipes, cable and drain, then pressure test and evacuate the circuit.
  5. The system is commissioned, the controls explained and the F-Gas records handed over.

How we quote

Whatever the property, the quote works the same way: the equipment, the access, the work involved and the time it takes. Ask for a fixed-price quote and we will explain each part.

Why choose AirCon Doctor

  • MCS certified heat pump installers
  • One number for homes and businesses across London and the South East
  • F-Gas certified company
  • Mitsubishi Electric, Daikin, Fujitsu, Panasonic, Toshiba and more

How to get a quote

Every quote shows the VAT clearly, and the rate that applies to your job is stated. VAT can differ between homes and businesses and between kinds of work, so we confirm it in writing rather than guess. To get one, ring us on 07833 053749 or use the quote form.

What’s near Welwyn

Locally, jobs take us to houses, flats and workplaces close to Stable Door pub, Danesbury Park and Monk's Walk School. Also close by are Homerswood Primary and Nursery School (1.1 miles south-east) and Parish Church of St Mary (under half a mile north). Welwyn’s nearest station is Welwyn North station, roughly 1.1 miles south-east of the centre. Nearby you’ll also find Queen Elizabeth II Hospital (3.5 miles south) and Datchworth Museum (2.7 miles north-east). Open spaces near Welwyn include Mardley Heath.

Air conditioning around AL6

In AL6, as across England, the same permitted development rules apply: cooling-only units are not covered, listed buildings need consent and conservation areas restrict outdoor units facing a road.

Across London and the South East, we reply to enquiries the same working day, with a 24/7 emergency line for breakdowns.

Welwyn: Older streets near Parish Church of St Mary may fall within a conservation area, so we check the planning position before choosing where the outdoor unit goes. About 0.9 miles south-east stands Digswell House. Listed homes in any area need consent first, so tell us if yours is one.

Why it fails

Many people try a portable unit first. A portable unit has to vent its warm air through a hose out of a window, which lets some heat back in, and its compressor sits in the room with you. A fixed split system puts the compressor outside.

Look out for these signs:

  • Fans and portables that do not keep up
  • Rooms under the roof that stay hot into the night
  • Rooms that get too hot to sleep or work in
  • An ageing air conditioning system near the end of its life

What air conditioning can’t fix

An honest diagnosis matters more to us than a booking, so here’s what air conditioning won’t do:

  • A lack of fresh air (most split systems recirculate room air rather than bringing fresh air in, which is a job for ventilation)
  • Central heating repairs
  • Building damp that has a structural cause

What owners can safely do

Owner care supports servicing; it doesn’t replace it. Clean filters and a clear outdoor unit help the system run as it should, but the inside of the units, the refrigerant and the electrics still need a qualified engineer.

Leave the units and pipework where they are. Disconnecting a system means dealing with refrigerant, which only a qualified engineer can do, and the electrical side needs a competent person. Ask us to quote for a move instead.

What happens if it’s left?

Where the outdoor unit goes matters to you and to the neighbours. Placing it well keeps noise away from bedrooms and boundaries and makes servicing easier, and it can make a difference to planning. We agree it with you on the survey.

What your quote should include

  • Whether a new circuit is included and who certifies it
  • Whose warranty applies, and on what terms
  • If the figure could change on the day
  • What paperwork you’ll receive afterwards

AL6: your questions answered

Do you work on all makes?

We work with the leading brands, including Mitsubishi Electric, Daikin, Fujitsu, Panasonic, Toshiba, LG, Samsung, Mitsubishi Heavy Industries and Hitachi. Send us the make and model if you have it.

Does servicing affect my warranty?

Each manufacturer decides. If servicing is in the terms, missing one could affect a claim, so we explain the terms on your quote.

Is the equipment covered by a warranty?

It’s the manufacturer’s warranty, which varies by brand. For example, Daikin’s standard warranty on split air conditioning is 2 years, and we explain the terms for whichever brand you choose.

Can I use air conditioning to heat a room?

In most cases, yes: modern splits are normally heat pumps, so they heat as well as cool. The Energy Saving Trust points out that an air-to-air heat pump is often just called air conditioning. We confirm the heating function of the model we quote.

Do you offer maintenance contracts?

Yes. We offer maintenance contracts, set at the interval the system and the manufacturer’s terms need. Each visit is written up and F-Gas records kept where they apply.

Can you fit air conditioning in a leasehold flat?

Often, yes, but there are extra steps. Leaseholders normally need consent from the landlord or management company for an outdoor unit and holes through outside walls, so check the lease. Permitted development rules for flats are also tighter than for houses, and we flag anything that may need permission. This is general information, not legal advice.

Will you make a mess?

Protection goes down first: dust sheets over floors and anything close to the work. Any drilling is agreed with you first, and we clear up the dust and offcuts when we finish.

F-Gas certified companyRefrigerant work done and recorded properly
NICEIC approvedElectrical work certified
MCS certifiedHeat pump installations
Checkatrade memberVetted trade directory
24/7 emergency lineBased in East Grinstead