
Campervan Converter in Grantham NG31 7UH
Grantham's Caravans & Motorhomes is a UK-based dealership specializing in the sale, valuation, and servicing of new and pre-owned caravans and motorhomes.
Grantham's Caravans & Motorhomes is a well-established UK dealership with over 50 years of experience in the leisure vehicle industry. The company operates two branches, one in Grantham and another in Retford, serving customers interested in both caravans and motorhomes. Their extensive experience positions them as experts in the valuation, sale, and maintenance of a wide range of leisure vehicles, from compact campervans to luxurious A-Class motorhomes.
The company's expertise extends to providing comprehensive valuation services for caravans and motorhomes, utilizing industry-leading tools like Glass's Guide. They offer detailed insights into factors affecting vehicle value, including age, condition, market demand, and layout. Beyond sales, Grantham's operates a static, AWS-approved workshop that handles a variety of services, including routine maintenance, damp and panel repairs, and the installation of popular extras such as motor movers, solar panels, and air conditioning units. This commitment to aftersales support ensures vehicles remain in optimal condition.
A distinctive aspect of Grantham's Caravans & Motorhomes is their Price Promise, which guarantees to match lower prices from local competitors for both vehicle sales and workshop services. This initiative aims to provide customers with confidence in receiving the best value without the need for haggling. For used vehicles, they offer peace of mind through a 12-month warranty, a Pre-Purchase Inspection (PDI) service, and CRiS checks for caravans, alongside personalized handover videos and a complimentary night's stay at a local campsite upon collection.
Reviewed by Joe Tannorella · updated April 2026 · Listing on camperbrain.com









Been put off caravanning for life,after buying brand new caravan from here, it fell to bits on way home, and it went down hill from there, sales man laughed, when we took it back, for its snagging list .never got sorted , ordered wrong parts!!!! Twice!!! Then we discovered a major structural problem. The after sales said it was the manufacturers problem. They said it was granthams to sort ....... then when we was back at granthams. Trying to get some answers. The after sales went into a back room ,and was really rude. ( they obviously thought we couldn't here them) . I would recommend them to anyone ... in the end we got rid of said van. The issues were picked up by the buyer and we lost thousands. So be warned.
Ordered a set of keys for my caravan and after a long search found that Granthams had them in stock. I received an email from them the same day, stating that Amanda had packed and shipped them. I ordered them on the Sunday and they arrived on Tuesday. They fit the door etc perfectly. Overall an excellent service with very fast delivery. I personally can highly recommend the company and now know where to go for outstanding service. Thank you.
I’ve bought various items from Grantham’s in the past and I’ve always been very happy with them, excellent quality and speedy delivery. Today I took delivery of a Berker TV Aerial Point that I’m going to fit in my caravan. The quality of the item is top notch and again the delivery was great. However, I do feel a little disappointed as the aerial point comes without any screws to fit it. Surely the screws should be included in the price?
Grantham Caravans focuses entirely on Volkswagen models. They specifically convert the VW Transporter T5, T6, and T6.1 chassis. This means you get a highly specialized build from a team that knows every single quirk of these German vehicles. In practice, sticking to one manufacturer guarantees tighter panel gaps and better electrical integration. They do not work on Fords or Renaults.
A complete build typically ranges between £15,000 and £25,000. Grantham Caravans prices each project based on your specific layout and component choices. For most builders, adding premium upgrades like a £1,200 diesel heater or a [£3,000 pop-top roof](/blog/vw-t5-pop-top-roof-prices) pushes the final budget higher. As a result, they provide an exact, itemized quote before cutting any metal. You always know exactly where your money goes.
Yes, you can absolutely supply your own base vehicle. Grantham Caravans frequently transforms customer-owned panel vans into fully equipped adventure rigs. This means you can hunt down a great deal on a used T6 before handing them the keys. In practice, the team will inspect your supplied chassis first to ensure it provides a solid, rust-free foundation. They reject structurally compromised vehicles to maintain build quality.
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Great price, well packaged by Amanda (thank you) and very speedy delivery. Grantham’s will be my go to first. The Colapz collapsible watering can & bucket is a brilliant product. Lightweight and folds down flat so a great space saver for canny caravanners. I love innovative ideas. Thanks Grantham’s
Hi we both would like to thank Grantham Caravans for delivering our new caravan And we would like to thank Andy from sales and Kevin who took care of our PDI who both made our journey brilliant and would recommend Grantham Caravans to people who are looking to take this journey in the caravan and motorhome lifestyle that it offers well done Sylvia and Tom
The company includes a comprehensive 12-month warranty on all conversion work. They cover structural integrity, custom cabinetry, and electrical installations. For most owners, this provides massive peace of mind during that critical first year of travel. Furthermore, third-party appliances like Dometic fridges or Victron inverters carry their own separate manufacturer guarantees. As a result, you stay fully protected across both the custom fabrication and the installed gear.
Grantham Caravans offers both proven standard layouts and fully bespoke designs. They know exactly what works inside a standard wheelbase. This means you can select a heavily tested traditional side-kitchen setup, or you can dictate a completely unique floorplan. In practice, custom designs cost more and require extensive planning sessions. However, you get a rig perfectly tailored to your specific camping style and gear storage needs.
You initiate the process by booking an initial consultation at their [campervan conversion facility in Grantham](/campervan-converters-grantham). The team sits down with you to discuss your travel goals, budget, and desired appliances. This means they can draft a highly accurate initial proposal. Once you approve the itemized quote, you pay a deposit to secure your production slot. As a result, the design phase kicks off with clear expectations on both sides.
They primarily install high-end lithium battery setups paired with smart charging systems. Grantham Caravans refuses to cut corners on off-grid power. For most builders, a standard package includes a 100Ah lithium battery, a DC-to-DC charger, and a 150-watt solar panel. This means you can comfortably run a compressor fridge and charge laptops without plugging into shore power. In practice, their electrical bays look incredibly clean and organized.
Yes, the company partners with specialized [campervan conversion finance providers](/services/conversion-finance). Grantham Caravans helps you spread the cost of your build over several years. This means you can afford higher-quality components upfront instead of compromising on your dream layout. In practice, applicants usually need a decent credit score and a minimum 10 percent deposit. As a result, transforming a bare metal shell into a luxury cruiser becomes much more accessible.