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34 Years
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Expert Construction & Renovation Services in Chelmsford, Essex
Established in 1992, Ronnoco Building Services has built a reputation for delivering exceptional construction and renovation projects across London, Essex, and Hertfordshire. Our team of highly skilled professionals collaborates with leading architects and designers to create inspiring residential and commercial properties tailored to client specifications. With 95% of our projects originating from client recommendations, we pride ourselves on transparency, reliability, and technical excellence. Our expertise spans new builds, loft conversions, house extensions, and commercial developments, supported by accreditations including Gas Safe registration and NICEIC approval.

We maintain rigorous quality control through meticulous planning, use of premium materials, and adherence to modern building regulations. Our commitment to client satisfaction is evidenced by testimonials highlighting timely delivery, competitive pricing, and exceptional craftsmanship. Operating from Chelmsford, we serve both private and institutional clients, offering end-to-end project management from initial design to final certification.
Services
New Builds Loft Conversions House Extensions Garage Conversions Garden Rooms Electrical Installation Roofing Commercial Sector Insurance Work Landscape Gardening
Details
  • Year established: 1992
Highlights and features
  • We have over 30 years of experience in residential and commercial construction.
  • Our team works with leading architects to deliver timeless, customised designs.
  • 95% of our projects come from client recommendations, reflecting our reliability.
  • We provide full project management from planning to final certification.
  • Our commitment to quality is demonstrated through meticulous attention to detail.
Associations and certifications
  • Gas Safe
  • NICEIC
What people say
Timely completion Professional team Excellent communication High-quality finishes Reliable project management
Services
New Builds
We specialise in constructing bespoke residential properties and commercial buildings using modern techniques and premium materials. Our end-to-end service includes planning applications, architectural design collaboration, and full project management. Clients benefit from energy-efficient solutions, innovative space utilisation, and compliance with the latest building regulations. Our 30-year track record ensures reliable delivery of high-specification developments tailored to individual requirements.
Loft Conversions
Transforming unused loft spaces into functional living areas, we offer complete loft conversion packages including structural calculations, planning permission, and interior finishing. Our solutions maximise property value while maintaining architectural integrity. With expertise in Velux window installations and dormer extensions, we deliver practical, aesthetically pleasing conversions completed within agreed timelines and budgets.
House Extensions
From single-storey rear extensions to complex multi-level projects, we create seamless property expansions that enhance living space and value. Our service includes structural engineering, building control compliance, and coordination of specialist trades. Clients receive customised designs that integrate with existing architecture while meeting modern energy efficiency standards through advanced insulation and glazing systems.
Garage Conversions
We convert garages into versatile living spaces such as home offices, gyms, or additional bedrooms. Our comprehensive service covers planning applications, structural modifications, electrical upgrades, and interior fit-outs. Using high-quality materials and skilled tradespeople, we ensure thermally efficient, durable conversions that meet building regulations while maintaining aesthetic harmony with the main property.
Roofing
Providing complete roofing solutions for residential and commercial properties, we handle everything from minor repairs to full roof replacements. Our services include flat roof installations, tiled roof refurbishments, and leadwork. Using durable materials and modern techniques, we ensure watertight, long-lasting solutions that protect properties against weather elements while enhancing visual appeal through precise craftsmanship.
People
Paul
Director
With over 30 years in the construction industry, Paul leads Ronnoco Building Services' operational delivery. He oversees project management, client relations, and quality control, ensuring adherence to strict timelines and budgets. His hands-on approach and technical expertise have earned industry recognition, including Builder of the Year in 2008. Paul maintains direct client communication throughout projects.
Questions
What areas do you serve?
We operate primarily in London, Essex, Hertfordshire, and surrounding areas, delivering construction and renovation projects within these regions.
Are you registered with industry accreditations?
Yes, we hold Gas Safe registration for plumbing work and NICEIC approval for electrical installations, ensuring compliance with industry standards.
Do you handle both residential and commercial projects?
We specialise in both sectors, offering new builds, extensions, and renovations for private clients and commercial entities.
Can you manage full-scale renovations?
Yes, our team handles complete property renovations including structural alterations, kitchen/bathroom upgrades, and system installations.
Do you offer emergency repair services?
We provide emergency call-outs for urgent building repairs, with 24/7 phone access for immediate assistance.
How do you ensure project quality?
We use premium materials, employ certified professionals, and maintain rigorous quality checks throughout each project phase.