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Trusted Oil Tank & Boiler Services in Sussex & Surrey
At Holly Boilers, we have established ourselves as specialists in oil tank installations, boiler servicing, and emergency response services across Sussex and Surrey. With extensive industry experience and a team of OFTEC-registered technicians, we deliver reliable, compliant solutions tailored to domestic and commercial needs. Our services include oil tank maintenance, repairs, relocations, and emergency pump-outs, ensuring minimal disruption to clients. We prioritize honesty, integrity, and customer satisfaction, offering competitive pricing without compromising on quality. As an accredited Tankmark installer for Halequin Tanks and an approved Certas Energy partner, we uphold the highest standards in safety, environmental compliance, and technical expertise.

Our 24/7 availability underscores our commitment to addressing urgent client needs promptly. From initial surveys to installation and maintenance, we work closely with our clients to provide bespoke solutions that meet their unique requirements. Our reputation for excellence is built on decades of dedicated service and a track record of successful projects across the South East. We take pride in offering transparent communication, swift response times, and durable solutions, ensuring long-term trust and reliability.
Services
Domestic Oil Tanks Commercial Installations Oil Tank Maintenance Oil Tank Repairs Emergency Pump Out Tank Relocations
Highlights and features
  • We are OFTEC-registered installers with industry-recognized accreditation.
  • We prioritize honesty, integrity, and transparent communication in all projects.
  • Our team offers competitive pricing without compromising on service quality.
  • We provide 24/7 emergency pump-out services for urgent oil tank issues.
  • We specialize in compliant oil tank relocations and environmental assessments.
Associations and certifications
  • OFTEC
  • Tankmark
  • Certas Energy
What people say
Good communication and friendly service Timely, efficient, and to budget Friendly and courteous technicians True gentleman with exceptional service Loan of spare drum for excess oil
Services
Domestic Oil Tanks
We supply and install domestic oil tanks designed for residential heating systems. Our range includes single-skin and bunded tanks from leading manufacturers like Harlequin, ensuring compliance with OFTEC regulations. Our technicians assess your property to determine the optimal tank location, prioritizing safety and environmental standards. Installation services minimize disruption while guaranteeing durability and performance for long-term reliability.
Commercial Installations
We provide commercial oil tank solutions for premises such as schools, farms, offices, and hotels. Our double-skin and bunded tanks meet strict industry standards, including eco-safe options from Kingspan Titan Environmental. Full installation services address fire safety, environmental risks, and regulatory compliance. Our experienced team ensures seamless integration into commercial properties while maintaining operational continuity during installation.
Oil Tank Maintenance
Our maintenance services prevent heating failures caused by water or microbial contamination in oil tanks. We offer water removal, internal tank cleaning, and fuel polishing using advanced centrifuge technology for optimal fuel quality. Regular servicing extends tank lifespan and ensures system efficiency, adhering to OFTEC guidelines. Clients benefit from tailored maintenance plans to protect their heating infrastructure.
Oil Tank Repairs
We repair oil tanks and associated components, addressing leaks, faulty pipework, and system malfunctions. Emergency repair services operate 24/7 for urgent issues, with competitive pricing and rapid response times. Our engineers specialize in all tank types, offering durable solutions for domestic and commercial clients. Spare parts and service contracts are available to ensure ongoing system reliability.
Emergency Pump Out
Our 24/7 emergency pump-out service addresses sudden oil tank leaks, preventing environmental contamination and insurance complications. We safely transfer oil to temporary storage tanks, allowing time for replacement installations. Temporary pipework maintains heating functionality during repairs. Discounted rates apply when combined with new tank installations, ensuring swift, cost-effective resolutions.
Questions
What areas do Holly Boilers serve?
We cover Sussex, Surrey, and the wider South East region for oil tank and boiler services, with nationwide availability for commercial projects.
Are Holly Boilers' services OFTEC-registered?
Yes, all our technicians are OFTEC-registered, ensuring installations and repairs comply with current UK regulations and industry standards.
Do you provide emergency oil tank services?
We offer 24/7 emergency pump-out services for leaking tanks, with temporary storage and rapid response times to minimize environmental risks.
Can Holly Boilers relocate existing oil tanks?
Yes, we assess new locations for compliance, handle fuel transfers, and provide full relocation services including base preparation and pipework adjustments.
What types of oil tanks do you install?
We supply and install domestic single-skin and bunded tanks, commercial double-skin tanks, and eco-safe models from brands like Harlequin and Kingspan Titan.
How often should oil tanks be serviced?
Annual maintenance is recommended, alongside periodic checks during refills and autumn to prevent water contamination and microbial growth in heating systems.
Reviews (1)
Martin Day
Mar 07, 2021 Report
First time i have used Holly Boilers, and in fact, not actually had them look at anything yet, Paul was excellent, asked if I would send a couple of photos of the issue, then suggested a fix which has worked fine so far. The fact is, unlike a number of companies, he was trying not to charge me for an unwanted visit. This was not the case with another issue and company, we had with our cooker, where we were charged an initial call out 200 plus, knowing exactly what the issue was, then a second charge for repair. ! I have no doubt that Paul is top class and professional and certainly doesn't