F-Gas registered · REFCOM certified | Cambridgeshire & London
24-hour breakdown line 01223 297 390
Installation · Maintenance · Repair

Expert cooling for homes and businesses.

Air conditioning and refrigeration for homes and businesses across Cambridgeshire and London. Considered design, careful installation, and support that continues long after the invoice is settled.

F-Gas registered
Certified engineers, no subcontractors
£10m
Insurance
Public liability cover on every job
24/7
Emergency line for contract holders
What we do

Three services, delivered to the Sygnum Standard

Installation, maintenance and repair, from a single bedroom unit to a full retail estate. Residential or commercial, the same engineers look after it all.

Talk to an engineer →
Clean new install, indoor unit above a window
01

Installation

Every system is sized on a calculated heat load rather than an estimate. We route pipework discreetly wherever the building allows, and leave the space as we found it.

Split, multi-split & VRF systems
Cold rooms & display refrigeration
7-year warranty on parts & labour
Engineer servicing a unit, filters out, gauges on
02

Maintenance

Planned visits that maintain efficiency and reduce unplanned downtime. You receive a written report after every service, along with the F-Gas records you are required to hold.

1, 2 or 4 visits a year
Statutory F-Gas leak testing
Priority response for contract holders
Van at a shop front, or diagnostics on a condenser
03

Repair

A clear diagnosis, explained in plain terms, and common parts carried on the van. When refrigeration fails there is stock at risk, so repairs are treated as a priority.

24-hour emergency call-out
Fixed hourly rate, quoted first
All makes, not just ours
Home installation from £1,695 fitted.
Six ranges, priced by the number of rooms. No forms, no waiting for a quote.
See prices
Domestic, living room or bedroom with a discreet indoor unit
For your home

Comfortable all year, room by room

Quiet, low-energy systems for living rooms, bedrooms, kitchens, extensions, garages and loft conversions, a single room or the whole house. The same units heat the room in winter at a lower running cost than a gas boiler. Fixed quotations, considerate installation, and honest advice on what you actually need.

Living rooms Bedrooms Kitchens Extensions Loft conversionsGarage conversions Home offices Conservatories Whole house
Domestic pricing and services →
Commercial, rooftop condensers, or a cold room / shop chiller
For your business

Keep trading, whatever the weather

Offices, restaurants, pubs, shops, supermarkets, gyms, salons, clinics, care homes, schools, server rooms and cold stores. Designed around your opening hours, installed outside them, and supported by a maintenance agreement with a four-hour response.

Offices Hospitality Retail Cold storesChillers Server roomsGymsSalonsHealthcareCare homesSchools
Commercial services and contracts →
Care plans

Looked after, not forgotten

A maintained system draws less power, lasts considerably longer and is far less likely to fail when it matters. Choose the level of cover that suits you.

All plans include labour on site, parts at cost, and your F-Gas paperwork kept up to date.
ComfortCARE
Homeowners

Ongoing support for efficient, reliable and comfortable home air conditioning.

First-Year System Review included with new installation
Planned annual service
Maintenance reminders
Priority scheduling
Performance and filter checks
Service history kept on record
ComfortCare in detail →
ClimateCARE
Businesses

Planned maintenance and clearer oversight of workplace systems.

First scheduled maintenance visit included with new installation
Planned preventative maintenance
Asset register
Service reports
Maintenance reminders
Priority support options
Relevant F-Gas record support
ClimateCare in detail →
Approved installers
Trained and accredited across every major brand
F-Gas Register
Daikin
Mitsubishi Electric
Panasonic
LG
The team, two engineers by the van, or a portrait of the founders
Who we are

Local engineers, the Sygnum Standard

Sygnum Group was founded by an engineer who has spent his career installing, maintaining and repairing cooling systems in everything from supermarket plant rooms to hospital chillers to domestic bedrooms. He has experienced an industry full of good engineers let down by poor process: undocumented work, inconsistent handovers, and advice given by people who would never set foot on site. He decided to build something different.

Sygnum was built the way a regulated business is run. We call it the Sygnum Standard: every survey, every decision and every job documented, evidenced and traceable. The principle is simple. The person who quotes the work is accountable for it. In practice that means directly employed engineers, no call centre, and the same standard of work whether it's one bedroom or eleven sites.

THE SYGNUM
STANDARD
Documented · Evidenced · Traceable
How we work

Every job, fully documented, from survey to sign off.

We apply the governance of a regulated industry to an engineering business. Survey findings, equipment reasoning, commissioning data, F-Gas records and every agreed variation are documented and kept, so if we return to your system in five years, its history can be read.

Read the Sygnum Standard →

"Two units in a Victorian semi with nowhere obvious to run the pipes. They found a way, and you'd never know they'd been."

Rachel M., Cambridge

"Walk-in went down on a Saturday night. Engineer was there in ninety minutes and we opened Sunday as normal."

Dan K., restaurant group, London

"Took over the contract on eleven sites. First thing they did was fix the paperwork the last lot had never done."

Facilities manager, retail estate, Cambridgeshire

Book a free survey

Tell us what you need and we will confirm your price. Prefer to talk it through first? Call us. There is no obligation either way.

enquiries@sygnumgroup.com · Mon–Fri 8am–5.30pm · Sat 8am–12pm · 24hr line for contract holders
Book a free survey
Homeowner
Commercial
Tell us the rooms and the range you like. We will confirm the price at the survey.
We respond within one working day.
SYGNUM
GROUP
AIRCONDITIONING&REFRIGERATION
35 Church Street
Sawtry
Huntingdon PE28 5SZ
01223 297 390
THE SYGNUM
STANDARD
Areas covered
CambridgeEly & NewmarketHuntingdon & St NeotsPeterboroughLondon & the Home Counties
Company
About us The Sygnum Standard Contact Accreditations Careers
© 2026 Sygnum Group Ltd · Registered in England 17388996