Business Details
50+ Years
experience
Your Trusted Partner for Home Improvements in Maidstone
FineLine Windows has been a trusted name in home improvements for over 50 years, specialising in bespoke windows, doors, conservatories, and extensions. Our expertise lies in crafting tailored solutions that enhance both the aesthetics and functionality of homes across Kent and beyond. With showrooms in Dartford and Maidstone, we combine cutting-edge design with precision manufacturing to deliver products that meet exacting standards. Our commitment to quality is underscored by a 10-year installation guarantee, while our customer-centric approach ensures minimal disruption during installations.As part of the One Group Construction network, we leverage industry-leading resources to maintain our reputation for excellence. Recognised through awards such as the G-Awards and MWCIA South East Company of the Year, we prioritise sustainability, innovation, and transparency in every project.
Services
Windows
Doors
Conservatories
Extensions
Garage Conversions
Roofline
Cladding
Details
- Year established: 1975
Highlights and features
- Over 50 years of fitting experience with a proven track record
- 10-year product guarantee on all installations
- Expert installation teams minimising home disruption
- Bespoke designs tailored to individual property needs
- Award-winning customer service with Trustpilot transparency
What people say
Outstanding customer care
Professional installations
10-year guarantee
Expert team
Transformative results
Services
Windows
Our bespoke windows combine energy efficiency with aesthetic appeal, available in uPVC, aluminium, and heritage styles. Each installation includes Eco-Max double glazing for thermal performance and noise reduction. Tailored to match property architecture, our windows enhance security and add long-term value through reduced energy bills.
Conservatories
Custom-built conservatories create versatile living spaces using uPVC or aluminium frameworks with glass or tiled roofs. We offer full project management from planning permission to installation, ensuring seamless integration with existing structures while maintaining energy efficiency and weatherproofing standards.
Doors
Security-focused doors include composite, uPVC, and aluminium options with custom glazing and furniture. Our installations feature reinforced frames, multi-point locking systems, and low thresholds for accessibility without compromising safety or thermal efficiency.
Extensions
Modern extensions increase property space and value through flat roof, orangery, or kitchen designs. We handle all aspects from foundations to finishing touches, using materials that complement existing structures while meeting current building regulations for insulation and structural integrity.
Garage Conversions
Transform existing garages into functional rooms with insulation, electrical upgrades, and structural modifications. Our conversions maintain building compliance while optimising space usage, incorporating ventilation systems and appropriate flooring solutions for habitable environments.
Questions
What guarantees do you provide for installations?
All installations come with a 10-year product and workmanship guarantee as standard.
Can you assist with planning permission requirements?
Yes, our team provides guidance and necessary documentation for planning applications as part of project management.
Are finance options available for installations?
We offer 0% APR and deferred payment plans subject to credit approval through SEHBAC Limited.
How long do typical installations take?
Window/door installations complete within four weeks, with conservatories requiring 4-6 weeks depending on complexity.
Do you operate outside Kent?
While based in Kent, we serve Essex, Suffolk and surrounding areas for all our home improvement products.
Videos
Reviews (5)
Doris Douglas
Jun 23, 2022
Report
Good customer service. Friendly and respectful approach. Helpful and gave clear and precise information.
Duffrey Robinson
Mar 28, 2022
Report
Dean Cowell was punctual for our estimation. He was very personable and efficient. Thanks for your time and good quote.
Reynardt Meyer
Mar 15, 2022
Report
Well, after getting a quote for a new Conservatory we thought this was really expensive but wanted to meet with Michael Duffy to understand how we can make changes without affecting quality of end product but get the price down. We have sent multiple emails and made numerous phone calls and nobody is ever in contact with us. After waiting 6 weeks for an exorbitant quote I am afraid I cannot recommend this company as we can't ever get hold of someone to help us. Their reviews on Facebook also leaves one with little confidence in them.
Alice Marsh
Jan 14, 2022
Report
First stage all good, no problem with communication, no hard sell. Professional service, let's hope the standard remains this high
Dave Sears
Jan 13, 2022
Report
I've used Fineline to fit the windows and doors in three of my previous homes. The first order being placed over 30 years ago. It's good to see their standards and quality have not only been maintained but have improved in all that time.
