Expert Technicians
Expert Technicians | HVAC Unit Replacement | Heating and Air Conditioning | Bristol
When your home’s comfort suddenly turns from cozy to chaotic, HEP’s expert technicians are ready to step in with prompt, courteous service that makes the entire HVAC unit replacement process effortless. From the first diagnostic visit in Bristol to the moment your new, energy-efficient system hums to life, our certified pros handle every detail—sizing, permits, removal, and pristine installation—so you can focus on enjoying perfectly balanced temperatures and lower utility bills.
Homeowners across Bristol trust HEP because we treat each job like it’s happening in our own living room. We arrive on time, protect your floors, explain options in plain English, and back every replacement with transparent pricing and rock-solid warranties. Discover why neighbors keep choosing HEP for their HVAC unit replacement and experience comfort you can count on season after season.
FAQs
How much does it typically cost to replace an HVAC unit in Bristol?
In Bristol, most whole-home HVAC replacements fall between £3,500 and £7,500 for a standard gas furnace/air-conditioner package, and £5,500-£11,000 for a high-efficiency heat-pump system. Final price depends on the size of your property (measured in BTUs or tonnage), the seasonal efficiency rating you choose (SEER/SCOP), whether new ductwork or electrical upgrades are required, and any optional indoor-air-quality accessories. After a free on-site survey our technicians provide a fixed quotation that includes labour, equipment, removal/disposal of the old unit, building-control certification and VAT, so there are no surprise extras.
How long does an HVAC replacement take from start to finish?
Once you approve the estimate, we schedule the installation at your convenience—often within a week during non-peak seasons. The physical swap-out usually takes one full working day for straightforward like-for-like replacements, or up to two days if new duct runs, condensate drains or electrical circuits have to be installed. Our team arrives at 8 a.m., protects your floors and furnishings, removes the old equipment, fits the new system, pressure-tests and evacuates the refrigerant lines, commissions the controls and tidies the site before leaving. You’ll receive a hand-over pack and demonstration the same day.
How do I know whether I should replace my existing system or just repair it?
We recommend considering replacement if your unit is over 12-15 years old, needs repairs costing more than 30 % of the price of a new system, uses the phased-out R-22 (Freon) refrigerant, or can’t maintain a comfortable temperature even after regular servicing. Frequent breakdowns, rising energy bills and uneven room temperatures are also warning signs. During a free diagnostic visit, our certified engineers measure system performance, check heat-exchanger integrity, inspect refrigerant levels and airflow, then present a repair-versus-replace report so you can make an informed decision.
What types of high-efficiency systems are available for Bristol’s climate?
Because Bristol has relatively mild winters and warm, humid summers, homeowners have several efficient options: • Air-source heat pumps: Provide heating and cooling in one package with SEER2 ratings up to 20 and SCOP up to 4.5. Perfect for most semi-detached and terraced homes. • Hybrid (dual-fuel) systems: Pair a heat pump with a gas furnace for maximum efficiency when temperatures drop below 0 °C. • High-efficiency condensing gas furnaces + inverter-driven AC: Up to 98 % AFUE and 18-20 SEER2. • Ductless mini-splits: Ideal for additions or older homes without existing ductwork. Our technicians perform a Manual J load calculation to size the equipment correctly and discuss rebates for systems exceeding current Part L Building Regulations.
Do new HVAC units come with warranties and can I get financing?
Yes. We are accredited installers for leading manufacturers such as Daikin, Mitsubishi Electric, and Worcester Bosch. Most offer a 10-year parts and compressor warranty (subject to annual servicing). Labour is covered by our in-house workmanship guarantee for 5 years. We handle the registration paperwork, so your warranty is validated automatically. We also partner with finance providers to offer 0 % APR plans up to 24 months or low-interest terms up to 10 years, subject to status. Utility-sponsored incentives and the Boiler Upgrade Scheme (BUS) can further reduce upfront costs on qualifying heat pumps.
What should I expect on installation day and how can I prepare?
Prior to arrival we’ll email a checklist: clear a 1-metre workspace around the indoor air handler and outdoor condensing unit, secure pets, and make sure someone over 18 is present. On the day, our uniformed engineers lay down dust sheets, isolate utilities, drain and recover old refrigerant per F-Gas regulations, and dispose of the equipment at an approved recycling centre. We test the new system in both heating and cooling modes, balance the airflow, set up smart thermostats, and register the installation with Building Control. Before we leave, we show you filter replacement, thermostat programming and maintenance tips, then collect payment or finance documents electronically.