Reliable Air Source Heat Pump Installation in Beccles, Suffolk & Norfolk

MCS-certified installer | £7,500 Boiler Upgrade Scheme grant | 15+ years across Suffolk & Norfolk

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Air Source Heat Pump Installation Across Suffolk & Norfolk

CMA Heating Limited installs air source heat pumps across Beccles, Suffolk, and Norfolk. We are MCS-certified (OFT-13900) and Gas Safe registered (952104), with over 15 years of hands-on heating experience.

Whether you’re replacing an oil boiler in a rural village or upgrading a gas system in town, we handle every step. That starts with a property survey and ends with a fully commissioned system ready to heat your home.

You deal with the same engineer from your first call through to handover. We size every system to your property, explain your options in plain English, and help you access the £7,500 Boiler Upgrade Scheme where eligible.

Energy efficient Suffolk home

Some Beccles Homes Suit Heat Pumps Better Than Others

After 15 years of working inside homes across Suffolk and Norfolk, we can usually tell within the first ten minutes whether a heat pump is going to be a good fit. The layout, the insulation, the age of the building, even the direction the property faces all play a part.

We’ve fitted heat pumps in all sorts of properties, and the ones that tend to work best include:

  • Detached and semi-detached homes where there’s a clear spot for the outdoor unit and the walls already hold their heat well. We fitted a system in a 1970s detached home near Aldeburgh last year that cut the owner’s heating bill almost in half compared to their old oil setup. These are some of our favourite installs. Heat only needs to travel across one level, so the system runs at lower temperatures and barely has to work hard. We see a lot of these around Worlingham and Carlton Colville.
  • Off-grid village properties around Bungay, Loddon, and the lanes between Southwold and Halesworth that still rely on oil. No more watching oil prices spike every winter or waiting on a delivery that’s two weeks late.

Here’s something we always tell customers. If your home has poor insulation, the best heat pump in the world will struggle. We’ve walked into beautiful old farmhouses near Framlingham and Woodbridge and had to say, “Let’s sort the loft and walls first.” It’s not what people always want to hear, but it saves them real money down the line. A few hundred pounds on insulation now can mean the difference between a system that ticks along quietly and one that runs up your electricity bill.

We never push anyone into a decision. The site assessment is free, and if a heat pump isn’t right for your home, we’ll say so. We’d rather point you toward a better option than sell you something that won’t perform.

Air Source Heat Pump Survey

A Proper Survey Removes the Guesswork Before Installation

We never quote a heat pump job from a phone call or a photo. Every property we work on across Suffolk and Norfolk gets a full survey first, because guessing the size of a system is how people end up with a unit that’s too big, too small, or too expensive to run.

The survey is where we do the real homework. Here’s what we check:

  • Insulation levels in the loft, walls, and floors. We’ve been in homes around Beccles that looked well insulated from the outside but were losing heat through gaps nobody had spotted in years.
  • Window types and condition. Single glazed sash windows in a Southwold cottage lose heat very differently to double glazed units in a modern build near Lowestoft.
  • Total floor area and room layout. We measure every room because the heat loss calculation has to be accurate, not estimated.
  • Hot water demand. A couple in a two-bed bungalow near Reydon needs a very different cylinder setup to a family of five in a four-bed detached home.
  • Outdoor unit placement. We need a clear, level spot with good airflow. Exposed sites along the Suffolk and Norfolk coast or open fenland can catch stronger winds, and we factor that into where and how we mount the unit.

One thing we’ve learned from years of doing this is that the survey saves money. If we get the heat loss calculation right, the system is sized properly from day one. That means you’re not overpaying for a unit that’s too powerful, and you’re not left cold because someone underestimated what your home needs.

We walk you through every finding on the day. No jargon, no confusion. By the time we leave, you’ll know exactly what the install involves, what it costs, and what your running costs should look like.

Survey radiator sizing for air source heat pump installation

Your Existing Radiators and Pipework May Still Work

This is the question we get more than any other. People assume a heat pump means starting from scratch, pulling up floorboards, and replacing every radiator in the house. In most of the homes we’ve worked on across Suffolk and Norfolk, it’s simply not the case.

We’ll give you a real example. Last year we surveyed a 1970s semi in Worlingham where the homeowner was convinced they’d need a full replumb. When we got under the floorboards, the original copper pipework was in better condition than some new installs we’ve seen. We connected the heat pump to it without changing a single pipe run. That saved the customer over a thousand pounds.

The pipework story is similar across a lot of the post-war housing stock around Carlton Colville, Beccles, and Lowestoft. Plumbers back then used quality copper and soldered joints that have stood up for 50 or 60 years. We always check every accessible section during the survey, and we’ll tell you straight if anything needs replacing.

Radiators are where we spend more of our time thinking. A heat pump doesn’t fire water up to the same high temperatures as your old gas or oil boiler. It works at lower, steadier flow temperatures instead. That changes how your radiators perform, and here’s what we typically find:

  • Bigger radiators in smaller rooms are usually fine as they are. The previous installer overspecced them, and now that actually works in your favour. We see this a lot in older properties around Aldeburgh and Woodbridge.
  • Smaller radiators in living rooms and bedrooms sometimes need swapping for larger panels. We had a cottage near Walberswick where the living room radiator looked fine on paper but couldn’t keep the room above 18 degrees on a windy February evening. A larger double panel solved it completely.
  • Towel rails are the one thing we almost always recommend changing. People love them, but most bathroom towel rails simply don’t have the heat output a heat pump system needs. We always have that honest conversation early so it’s not a shock on the quote.
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Here’s our advice. Don’t let anyone tell you everything has to go without checking first. We’ve seen other installers quote for a full radiator swap across an entire house when half of them were perfectly adequate. That’s money you don’t need to spend.

We photograph and measure every radiator during the survey and run the numbers against the heat loss calculation for each room. You get a clear, room by room breakdown showing what stays, what needs upsizing, and exactly what the cost difference is. No grey areas, no guesswork.

Keeping what already works is always our preference. It saves you money, it means less mess in your home, and if the existing system is sound, there’s no good reason to rip it out

Installation of air source heat pump in norfolk home

Installation Day Follows a Clear, Predictable Process

We know that having engineers working in your home for a few days is not anyone’s idea of fun. That’s why we make sure you know exactly what’s happening and when, before we turn up with a single tool.

Most of our heat pump installations across Suffolk and Norfolk take two to three days. We’ve done some in less, and larger properties with complex pipework or multiple zones can stretch to four. But we’ll tell you the exact timeline before we start, and we stick to it.

Here’s how a typical install goes in the homes we work on around Beccles and the surrounding area:

  • Day one is all about the outdoor unit. We prepare a level concrete or paving base, position the unit, and run the refrigerant lines through to the inside of the property. Placement matters more than people realise. We’ve had installs near Thorpeness where the coastal wind meant we needed to tuck the unit behind a wall for protection, and others in sheltered Bungay gardens where it sat happily in the open.
  • Day two focuses on the indoor work. We connect the system to your hot water cylinder, link up the radiators, and run the electrical supply. If any radiators need swapping, that happens now. This is the busiest day inside the house, but we keep the disruption to specific rooms rather than taking over the whole property.
  • Day three is commissioning and handover. We power up the system, set the flow temperatures, programme the controls, and run every check to make sure the unit is performing exactly as the survey predicted. Then we sit down with you and walk through how everything works. We don’t leave until you’re confident using the controls yourself.

One thing worth knowing if you live within the Broads Authority area. Some installations may need notification under local planning rules. We handle that paperwork for you as part of the job. It’s something we’ve dealt with many times on projects around the Norfolk Broads, and it’s never held up a start date when we plan ahead.

Something we’re proud of is that you see the same face throughout the whole process. We don’t hand you off to a subcontractor or send someone you’ve never met. The engineer who surveyed your home is the same person who installs and commissions your system. We think that matters, because nobody knows your property better by that point than the person who’s been planning the job from the start.

We always leave a property clean and tidy. We’ve had customers in Southwold and Halesworth tell us they were surprised how little mess there was. That’s the standard we hold ourselves to on every job.

Reduced running costs with efficient home

Running Costs Stay Low When the System Is Set Up Right

This is the section of the conversation where most customers lean forward. Running costs matter, and we’d never pretend otherwise. The honest answer is that a heat pump can cost less to run than a gas or oil boiler, but only when the system is set up properly from day one.

We’ve seen it go wrong. Not on our own installs, but we’ve been called out to properties across Suffolk and Norfolk where another company fitted a heat pump and the electricity bills came in higher than expected. Almost every time, the problem is the same. The flow temperatures were set too high, the controls weren’t programmed correctly, or the system was oversized for the property.


Here’s what we do differently, and why our customers in Beccles, Halesworth, and across the region see the running costs they were promised:

  • We set flow temperatures low and keep them there. A heat pump works best when it sends water through your radiators at around 35 to 45 degrees, not the 60 or 70 degrees your old boiler used to. It feels counterintuitive, but lower and steadier wins every time.
  • We programme the controls to run the system at a constant low background temperature rather than blasting heat on and off throughout the day. This is the 20 degree rule we talk about with every customer. Keeping your home at a steady, gentle warmth uses far less electricity than heating from cold three or four times a day.
  • We match smart controls to your daily routine. If you’re out at work all day, or you only use certain rooms in the evening, we set the system up to reflect that. The technology is there to be used, and we make sure it’s working for you, not against you.

Here’s something we always share with customers who are replacing oil boilers. Households around Halesworth, Beccles, and the villages across rural Suffolk that switch from oil to a properly set up heat pump often see their annual fuel spend drop. Oil prices jump around from year to year, and you’re always at the mercy of the next delivery price. Electricity is more stable, and a well sized heat pump turns every unit of electricity into three or four units of heat.

We don’t just commission the system and leave you to figure it out. During handover, we spend time with you going through the controls, explaining what each setting does, and showing you what not to change. We’ve learned over the years that the biggest risk to running costs is someone turning the flow temperature up because the house doesn’t feel warm enough in the first hour. We’d rather spend an extra thirty minutes with you on handover day than have you ringing us in January wondering why your bill has spiked.

If the numbers don’t add up for your property, we’ll tell you before you commit. We’ve had conversations with homeowners near Woodbridge and Aldeburgh where the running cost savings simply weren’t strong enough to justify the switch. In those cases, we’ll recommend what does make sense, even if that’s a new gas or oil boiler instead.

routine maintenance for air source heat pumps

Simple Maintenance Keeps Your Heat Pump Working for 20 Years

One of the things we tell every customer is that a heat pump is one of the lowest maintenance heating systems you can own. There’s no flame, no flue, no carbon monoxide risk, and no annual gas safety certificate to think about. Compared to the gas and oil boilers we’ve been servicing for 15 years, the difference in complexity is night and day.

That said, we’ve been servicing heat pumps long enough now to know what separates the systems that sail through every winter from the ones that start losing performance after a few years. It almost always comes down to a handful of simple habits.

Here’s what we ask every customer to do between our service visits:

  • Walk past the outdoor unit once a week and give it a quick look. That’s all it takes. You’re checking that nothing has blown against it, that leaves haven’t piled up around the base, and that the fan grille is clear. We serviced a unit near Framlingham last autumn where the homeowner hadn’t checked it since spring. The coils were packed with sycamore seeds and the system was working twice as hard as it needed to. Five minutes with a soft brush fixed it, but those months of extra strain weren’t ideal.
  • Clear around the unit properly in October and November. This is when it matters most. Properties with mature gardens across rural Norfolk and Suffolk get hit with heavy leaf fall, and it always ends up near the outdoor unit. Customers of ours near Woodbridge and Southwold with big oak and beech trees in the garden know the drill now. A quick sweep every couple of weeks through autumn keeps everything running cleanly.
  • Bleed your radiators at the start of each heating season. We say this to every customer, heat pump or not. Trapped air stops radiators heating evenly and makes the system work harder. If the top of a radiator feels cooler than the bottom, grab a radiator key and let the air out. It takes less time than making a cup of tea.
  • Don’t touch the flow temperature settings. This is the one we really emphasise. We set the flow temperatures carefully during commissioning, and they’re calibrated to your property. We’ve had a handful of calls over the years from customers who bumped the temperature up because the house felt slow to warm on a cold morning. Every time, their electricity bill jumped. If the house feels cold, call us before changing anything. There’s usually a simple fix that doesn’t involve turning the dial up.

When we come out for an annual service, here’s what we’re actually doing and why each bit matters:

  • Checking refrigerant levels and pressures. This is the heartbeat of the system. If refrigerant drops even slightly, the heat pump has to pull harder to deliver the same warmth and your bills go up quietly in the background. We caught a slow leak on a system near Aldeburgh two winters ago that the homeowner would never have noticed. Left unchecked, it would have cost them hundreds in extra electricity over a full heating season.
  • Inspecting all electrical connections. Vibration from the compressor can loosen terminals over time. It’s rare, but we’ve seen it, and a loose connection is something you want found during a planned visit, not on a freezing night in January.
  • Comparing system performance against the commissioning data. We record detailed figures when we hand over every install. At the annual service, we run the same checks and compare. If anything has drifted, we recalibrate on the spot. This is something we think sets us apart. We don’t just glance at the unit and tick a box. We want to see the numbers matching what we promised you on day one.

Here’s our honest opinion on service plans. We offer them to every customer and most people across Beccles, Halesworth, and the surrounding area take us up on it. We’d recommend it for two reasons. First, it keeps your manufacturer warranty valid, and you don’t want to find that out the hard way. Second, it means we stay familiar with your system. When the same engineer visits your property year after year, they notice small changes that a stranger walking in for the first time would miss.

We’ve got heat pump installs from our earlier years that are still running beautifully with nothing more than an annual service and a homeowner who keeps the outdoor unit clear. Twenty years of reliable heating from a single installation is realistic. It just takes a small amount of care, and we make sure you know exactly what that looks like before we leave your property.

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