Solar Installation in Guildford — CRG Direct Renewable Solutions

Overview of renewable energy solutions for Guildford

CRG Direct designs and installs solar PV systems, battery storage, air source heat pumps and EV chargers across Hampshire, Surrey and the South Coast. We've been doing it since 2017, we're MCS certified and NICEIC approved, and our own installation team does the work rather than a subcontracted crew.

Guildford is a short run from Farnborough and Aldershot, where we already work most weeks, so Surrey coverage is an extension of the patch rather than a claim on a map.

The borough is a harder place to install solar than the numbers suggest. Guildford has 41 conservation areas, Article 4 directions that strip out permitted development rights on some properties, and Metropolitan Green Belt covering most of the borough outside the built-up area. On top of that, the rural fringes fall inside the Surrey Hills National Landscape, where landscape impact carries real weight in a planning decision.

None of that rules solar out. What it means is that the design has to start from the constraint rather than get bolted onto a roof and argued about afterwards.

We work with homeowners and businesses across the borough, from Victorian terraces in Charlotteville and Stoke Fields to the industrial units on Slyfield and commercial premises along the A3 corridor.

Get a free quote or call 0333 253 3531.

Solar panel installation and local solar panel installers

Free survey and bespoke system design. An engineer visits, measures the roof, checks the structure and covering, and assesses shading across the year rather than on the day. We model expected generation for your specific orientation, pitch and shading, set it against your actual electricity use, and quote a fixed itemised price. No charge, no obligation.

Mounting options:

• Pitched tile and slate. In-roof or on-roof mounting. On-roof is standard. In-roof sits the panels flush within the roof plane and is often the design that gets consent in a conservation area, because the array reads as part of the roof rather than as something added to it.
• Natural slate. Slate hooks rather than standard hooks, and a slater's approach to lifting and re-dressing. Common on Guildford's older housing stock.
• Flat roofs. Ballasted tilt frames that don't penetrate the membrane, or east-west racking to fit more capacity onto the same area.
• Ground-mount. Where roof space is unsuitable, shaded or visually constrained. In Guildford this needs care: most of the borough outside the built-up area is Green Belt, and ground-mounted arrays there are a planning application rather than permitted development.

Certifications. MCS certified, NICEIC approved, HIES registered. MCS certification is what makes your system eligible for the Smart Export Guarantee and it's required for grant-funded work. Check any installer on the public MCS register before signing, us included.

Warranties. Panels typically carry a 25-year performance warranty and a properly installed array will run well past that. Inverters are usually 10 to 12 years with paid extensions available. Batteries carry a manufacturer warranty on cycles and capacity retention, commonly around ten years. Our own workmanship guarantee covers the installation itself, backed by HIES.

What to expect from a Guildford installation

1. On-site survey. Roof measurement, structural check, covering condition, shading assessment, consumer unit and earthing inspection, and a check on whether an Article 4 direction or conservation area designation applies to the property. On period stock we check the roof covering can take fixings before anything else gets discussed.

2. System modelling. We combine the survey measurements with satellite and aerial imagery to build an accurate array layout and a shading profile across the year. The imagery gets us the geometry. The site visit gets us everything imagery can't see: rafter condition, tile type, access, and the mature tree that's only a problem in December. Neither is sufficient on its own, which is why we won't quote from imagery alone.

3. Installation day. Scaffolding goes up first, usually the day before. The crew fits the mounting system, lays the panels, runs DC cabling to the inverter position, installs the inverter, isolators and any battery, and connects into the consumer unit. Most domestic installs are one to two days on site.

4. Commissioning and handover. Full electrical testing to BS 7671, generation verification, inverter configured to the correct DNO grid settings, MCS registration, and monitoring set up on your phone. You get the test certificates, the MCS certificate, DNO paperwork and a walkthrough before we leave.

Battery storage, EV chargers and system integration

Why storage matters. Solar generates around midday. Households use electricity morning and evening. Without a battery you export roughly half your generation and buy it back later at three to four times the export rate. Storage lifts self-consumption from around 35-50% to 70-85%, and that gap is where the money is.

Sizing. Size against your actual half-hourly consumption, not against your array. Rough guide:

EV chargers. 7 kW smart chargers that talk to your inverter and prioritise surplus solar, topping up from the grid only when generation drops. Guildford's commuter pattern suits this well: the car sits on the drive through the middle of the day in a lot of households, which is exactly when the array is producing. On a time-of-use tariff the car, the house and the battery all charge on the cheap overnight rate instead.

Hybrid setups with heat pumps. A heat pump raises electricity demand substantially, which strengthens the case for both a larger array and storage. Designed together this works well. Bolted on one at a time over five years, it usually means paying twice for the same electrical work.

Heat pumps and the wider retrofit

Air source heat pumps run at efficiencies of roughly 300-400%, meaning three to four units of heat out for every unit of electricity in, and they keep working at outdoor temperatures well below freezing. They suit properties currently on oil or electric heating best, which across the Guildford borough means a lot of the villages off the mains gas network out towards Shere, Albury and the Horsleys.

The Boiler Upgrade Scheme currently pays £7,500 towards an air source heat pump, rising to £9,000 for homes currently heated by oil or LPG between 21 July 2026 and 31 March 2027. Your installer claims it and takes it off the price.

Heat pumps and solar self-consumption. A heat pump turns surplus solar into stored heat rather than cheap exports. Run it during the day while the array is generating and you're heating the house on electricity you'd otherwise have sold at a fraction of its value.

Fabric first. A heat pump into a poorly insulated house is an expensive mistake. Loft and cavity insulation, draught-proofing and adequate ventilation come first, ventilation particularly, because tightening a period property without addressing airflow causes condensation and damp. We'll tell you at survey if the fabric needs work before the plant does.

Costs, savings, payback and grants

Generation. Guildford sits in one of the better parts of the country for solar, a little behind the coast and comfortably ahead of the UK average of around 920 kWh per kWp. A well-sited roof here produces in the region of 950-1,020 kWh per kWp per year, so a 4 kWp array generates roughly 3,800-4,080 kWh annually depending on orientation, pitch and shading.

Worked example, 4 kWp system:

System costs. Domestic installations start from £6,300 including the MCS certificate, mounting kit and HIES guarantee. What moves the number: array size, battery capacity, roof type and covering, scaffolding and access, and whether the consumer unit needs upgrading. All residential installs currently carry 0% VAT, running until 31 March 2027 before rising to 5%.

Grants and schemes in Surrey.

• Warm Homes: Local Grant. Surrey County Council delivers this locally, covering Guildford borough. It funds insulation, heat pumps, solar PV and battery storage for eligible low-income households at risk of fuel poverty. It opened on 1 September 2025 and runs to 31 March 2028, with whole-project values averaging in the region of £12,400 per household. Broad eligibility is EPC D-G plus a household income or vulnerability condition. Owner-occupied or privately rented, and the installer must be MCS certified.
• Solar Together Surrey. Surrey County Council's group-buying scheme, run with iChoosr, with Guildford Borough Council among the participating authorities. Approved installers bid in a reverse auction and registration is free and non-binding. Worth registering alongside independent quotes so you have something to compare against.
• ECO4 and GBIS. Insulation and heating measures for eligible households. ECO4 runs to the end of 2026.
• Boiler Upgrade Scheme. £7,500 towards a heat pump, £9,000 for oil or LPG-heated homes, until 31 March 2027.

How we help. We check eligibility at survey rather than after you've committed, and we support the application paperwork rather than handing you a leaflet.

Planning permission, conservation areas and grid connections

When you don't need planning permission. In most cases, roof-mounted solar on a house is permitted development, including within a conservation area, provided the panels project no more than 200mm beyond the roof plane, don't sit above the highest part of the roof, and aren't on a wall fronting a highway.

When you do.

• Article 4 directions. Guildford Borough Council uses Article 4 directions to control change in conservation areas. Where one applies, permitted development rights are removed and you need planning permission for work a neighbour two streets away could do freely. This is checkable in advance and we check it before quoting.
• Wall-mounted panels on a wall fronting and visible from a highway need permission.
• Ground-mounted arrays visible from a highway, and most standalone installations on Green Belt or designated land, need permission. Given how much of the borough is Green Belt, assume a ground-mount is an application.
• Listed buildings always need Listed Building Consent, wherever the panels go.
• Surrey Hills National Landscape. On the rural fringes of the borough, landscape and visual impact carry more weight and the bar for anything visible from open countryside is higher.

Listed Building Consent, briefly. It's a separate application from planning permission and it needs a heritage statement that engages properly with what makes the building significant. Consent is achievable. The approach that works is keeping panels off principal elevations, using rear or concealed slopes or a secondary building, and specifying all-black frames and rails rather than silver. Determination typically takes eight weeks or more, and pre-application advice is usually worth the fee on a sensitive property.

Grid connections, G98 and G99. Every system has to be notified to the DNO. Across Guildford and the rest of Surrey that's UK Power Networks, not SSEN as it is on our Hampshire patch. Different operator, different portal, different queue, and it's worth knowing which one you're in before anyone quotes you a timescale.

• G98 is a connect-and-notify route for small systems, up to 16A per phase, roughly 3.68 kW on a single-phase supply. Notification goes in after commissioning.
• G99 applies to anything larger, and to most solar-plus-battery combinations, because the battery's inverter output counts. This one is apply and wait. Approval must be in place before the system energises and it commonly takes four to eight weeks on a straightforward domestic job, longer where the local network is constrained.

We handle the paperwork. Planning applications, Listed Building Consent submissions, heritage statements, G98 notifications and G99 applications. You don't chase any of it.

Process: from free quote to installation

1. Free, no-obligation quote. Start online at crgdirect.co.uk/quote or by phone.

2. Initial phone consultation. We discuss your property, your current energy use, what you're trying to achieve, and whether there are obvious constraints worth flagging before anyone travels. If solar doesn't make sense for your property we'd rather say so on the phone than after a survey.

3. On-site survey and design approval. Engineer visit, then a fixed itemised proposal with a modelled yield figure for your roof, self-consumption modelling with and without storage, and a payback estimate. You approve the design before anything is ordered.

4. Installation and commissioning. Roughly four to six weeks from approval to a commissioned system on a straightforward domestic project. Most of that is DNO approval and scaffolding scheduling rather than install. Add eight weeks or more where planning or Listed Building Consent is needed.

5. Aftercare. App-based monitoring from day one, warranty support, and optional maintenance covering electrical testing, mounting integrity, inverter health and battery state of health.

Commercial solar and B2B solutions

Proposals built around your energy profile. Commercial returns are driven almost entirely by self-consumption, meaning how much of the generation you use on site rather than export. A unit running machinery from 8 to 5 gets a very different answer from a warehouse that's mostly lit and heated. We start from your half-hourly consumption data, not from your roof area.

Site energy surveys and ROI modelling. Structural survey on the roof first, which is non-negotiable on flat commercial roofs because load capacity and covering condition decide what's possible. Then consumption analysis, array design, and a model showing generation against demand hour by hour, with payback and return over the system life.

Guildford commercial context. Trade and industrial units on Slyfield, office and research premises around the Research Park and the university, retail and hospitality in the town centre, and agricultural and equestrian buildings across the rural parishes. Large flat industrial roofs suit ballasted systems. Agricultural buildings often have substantial south-facing spans with no shading at all.

Funding. Commercial solar is normally purchased outright or through the business's own lending arrangements, and capital allowances may apply. Speak to your accountant about the tax treatment; we provide the generation and consumption modelling they'll need.

FAQ: solar panel installation in Guildford

How much does a solar installation cost in Guildford? Domestic systems start from £6,300 including MCS certification, mounting kit and HIES guarantee. Adding battery storage increases it, and roof type, access and scaffolding all move the figure. You get a fixed itemised quote after survey rather than a range.

Do I need planning permission in a Guildford conservation area? Usually not for roof-mounted panels on a house, provided they sit within the permitted development limits. The exception that catches people out is an Article 4 direction, which removes those rights entirely on some properties. We check which conservation area and which directions apply to your address before quoting.

Is my roof eligible? South-facing is best, but east and west roofs are perfectly viable and produce a flatter curve that often matches household use better. What matters more is usable area, structural condition and shading. Chimneys, dormers, neighbouring buildings and mature trees all cost output, and we measure shading at survey rather than estimating it from an aerial photo.

What about shading from trees? Reduced output, but often still worthwhile. Power optimisers or microinverters recover a good part of what a shaded string would otherwise lose. We model it properly and tell you the honest number.

Can I sell electricity back to the grid? Yes. All larger licensed suppliers must offer a Smart Export Guarantee tariff, so surplus generation earns money rather than being given away. Rates vary enormously between suppliers and switching to a better one is often worth a few hundred pounds a year. We keep a current comparison in our SEG tariff guide. You need an MCS-certified installation and a smart meter to qualify.

Do solar panels work in winter? Yes, at reduced output. Panels run on daylight rather than direct sun, and the annual generation figures above already account for a full UK year including December.

How long do panels last? Over 25 years. Performance warranties typically run to 25 years and panels commonly keep producing beyond that at slightly reduced output.

Why choose CRG Direct in Guildford

Residential and commercial. We work across both, which matters more than it sounds. The same team that sizes a battery for a three-bed semi also models half-hourly consumption for an industrial unit, and the domestic work stays sharp because of it.

Grant and retrofit experience. We check eligibility for the Warm Homes: Local Grant, ECO4, GBIS and the Boiler Upgrade Scheme at survey stage and support the application. Local schemes change from year to year and we track what's currently live rather than working from last year's leaflet.

Guarantees. MCS certified, NICEIC approved, HIES registered. Product warranties on panels, inverters and batteries, plus our own workmanship guarantee on the installation, backed by HIES deposit and guarantee protection.

Honest advice. If your roof doesn't suit solar, if the fabric needs attention before a heat pump, or if a battery won't pay for itself on your consumption pattern, we say so. Compare quotes line by line on panel and inverter specification rather than on headline price, and we're happy to be judged on that basis.

Contact, coverage area and free quote

CRG Direct 172 Sea Front, Hayling Island, PO11 9HP Phone: 0333 253 3531 Email: info@crgdirect.co.uk Free quote: crgdirect.co.uk/quote

Book a no-obligation site survey. No charge, no pressure, and an engineer rather than a salesperson. Bring twelve months of electricity usage in kWh if you have it, or better, half-hourly data from your smart meter account. That's what lets us size storage properly and give you a realistic saving figure instead of a generic one.

Areas covered: Guildford town and the surrounding borough, including Onslow Village, Charlotteville, Stoke Fields, Merrow, Burpham, Slyfield, Shalford, Worplesdon, Ash, Tongham, Normandy, Pirbright, Send, Ripley, East and West Horsley, Effingham, Shere and Albury, plus Woking, Godalming, Farnham and Cranleigh and the wider Surrey, Hampshire and South Coast region.

MCS Certified | HIES Certified | NICEIC Approved | Installing across the South since 2017

Get your free quote or call 0333 253 3531 to discuss your project.