Business Details
Trusted Home Builders for Thermal-Efficient Conservatories
ThermoGreen, a family-run business with over four decades of experience in home improvements, specialises in transforming conservatories, windows, and doors to enhance thermal efficiency. Our team prioritises customer satisfaction through non-pressurised consultations, tailored solutions, and professional installations. Certified by CERTASS and backed by Installsure insurance, we offer 5 - 10 year guarantees on products, ensuring durability and peace of mind.Our services include insulated ceilings, tiled roofs, A-rated windows, composite doors, and roofline upgrades, all designed to create year-round usable living spaces while reducing energy costs. With a focus on local Lincolnshire communities, we combine technical expertise with ethical practices to deliver reliable, high-quality results.
Services
Insulated Conservatory Ceiling
Insulated Conservatory Roof
Thermal Infill Panels
Conservatory Upgrades
A-Rated Windows
Composite Doors
Roofline & Cladding
Highlights and features
- We have over 40 years of experience in thermal-efficient home improvements.
- Our team is CERTASS registered for quality and compliance assurance.
- Non-pressurised consultations with transparent, obligation-free quotes.
- We offer 10-year insurance-backed guarantees on windows and doors.
- Local family-run business with a focus on Lincolnshire communities.
Associations and certifications
- CERTASS
- Installsure
What people say
Excellent service
Highly recommended
Polite and professional
Brilliant energy-efficient conservatory
Workmanship was excellent
Services
Insulated Conservatory Ceiling
ThermoSave insulated ceilings reduce heat loss in winter and solar gain in summer, transforming conservatories into year-round spaces. With a U-value of 0.9, they cut noise, glare, and condensation. Installed internally without altering the existing roof structure, these lightweight ceilings enhance comfort and energy efficiency while maintaining aesthetic appeal.
Insulated Conservatory Roof
Equinox insulated tiled roofs achieve a U-value of 0.16, offering superior thermal performance. Compatible with all conservatory styles, they include options for roof windows and lighting. The system includes new fascia, guttering, and insulation, requiring no ongoing roof maintenance while providing a seamless aesthetic upgrade.
A-Rated Windows
A-rated UPVC and aluminium windows feature multi-locking systems and double/triple glazing for security and noise reduction. Available in white, woodgrain, or contemporary colours, they improve thermal efficiency, lower energy bills, and require minimal maintenance with wipe-clean surfaces.
Composite Doors
Composite doors combine 5-point locking systems with triple-seal frames for maximum security and thermal efficiency. Available in various colours and styles, they resist weathering and fading. Installation includes draught-proofing and alignment checks to ensure long-term performance and aesthetic harmony with your property.
Conservatory Upgrades
Full conservatory upgrades include replacing polycarbonate with insulated panels, installing ThermoSave ceilings, and fitting A-rated windows and doors. The process revitalises outdated structures into energy-efficient living areas, enhancing usability and property value with minimal disruption during installation.
Questions
Do you offer guarantees on your products?
Yes, we provide 5–10 year insurance-backed guarantees on all installations, including Installsure coverage for added peace of mind.
How long does installation take?
Most projects complete within 1–6 days depending on complexity, with clear timelines provided before work begins.
Can you help with planning permissions?
We handle Building Control Approvals for tiled roofs and guide you through necessary regulations to simplify the process.
Are your products energy efficient?
All windows and doors are A-rated, and our insulated roofs achieve U-values as low as 0.16 to reduce energy consumption.
Do you work outside Lincolnshire?
Our primary service area is Lincolnshire, but we consider nearby regions for larger projects. Contact us for details.
