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Business Details
34 Years
experience
Your Trusted Home Improvement Partner in Northampton
Martindale Windows has been a trusted name in home improvement for over four decades. As a family-run business established in 1992, we specialise in crafting and installing premium windows, doors, and conservatories tailored to meet the unique needs of homeowners in Northampton and surrounding areas. Our FENSA-registered team combines traditional craftsmanship with modern technology to deliver energy-efficient solutions that enhance both aesthetics and functionality. With a reputation built on customer recommendations, we prioritise quality workmanship and client satisfaction. Our services extend to bespoke kitchens, verandas, and architectural accessories, all supported by industry-leading accreditations.

Operating from a state-of-the-art showroom, we provide end-to-end project management from design consultation to installation. Our commitment to excellence is reflected in our 10-year product warranties and partnerships with leading suppliers. We serve Northamptonshire, Bedfordshire, Leicestershire, Buckinghamshire, and Oxfordshire, offering tailored solutions for both new builds and renovation projects. Our team of 12 dedicated professionals ensures every installation meets rigorous standards of security, thermal efficiency, and durability. As an introducer appointed representative of Ideal Sales Solutions Ltd, we also provide finance options to suit various budgets.
Services
Windows Doors Conservatories Bi-Fold Doors Patio Doors Crittall Style Doors Roof Lanterns Bespoke Kitchens Verandas Door Knockers
Details
  • Year established: 1992
Highlights and features
  • We offer 40+ years of combined experience in home improvement solutions
  • Our FENSA-registered installations guarantee compliance with building regulations
  • 95% of our business comes from customer recommendations
  • We operate a state-of-the-art showroom for product demonstrations
  • We provide tailored solutions for both modern and traditional properties
Associations and certifications
  • FENSA
  • JHAI
What people say
Outstanding craftsmanship Professional installation team Energy bills reduced Design consultation excellence Durable materials used
Services
Windows
We supply and install UPVC, aluminium, and hardwood windows tailored to enhance property aesthetics and energy efficiency. Our range includes casement, flush sash, tilt & turn, and residence collection windows. All products feature multi-point locking systems and meet BFRC energy efficiency ratings, with options for decorative glass and traditional timber aesthetics combined with modern performance.
Conservatories
Our custom conservatories combine innovative design with thermal efficiency, available in Edwardian, Lean-To, and bespoke styles. Using 3D design software, we create structures with high-performance glass and warm roof options. The solutions provide year-round usability with features like polycarbonate or tiled roofing, ensuring seamless integration with both contemporary and period properties.
Bi-Fold Doors
Aluminium and composite bi-fold doors maximise natural light and space, featuring triple-glazed units and 3-star Yale locks. With sightlines as narrow as 120mm and thermal performance down to 1.4 U-values, these doors offer security and energy efficiency. Available in configurations up to 7m wide, they include low-threshold options and 10-year warranties on hardware.
Crittall Style Doors
Internal steel door systems with W20 profiles create minimalist partitions that enhance natural light flow. Available with single or double-glazed units, these doors offer acoustic benefits and space flexibility. Customisable with various finishes and handle options, they feature concealed running gear and soft-close mechanisms for seamless operation in residential settings.
Roof Lanterns
Aluminium roof lanterns from Korniche and Atlas provide architectural focal points with U-values as low as 1.1. The thermally broken designs eliminate cold bridging while supporting large glass sizes without additional rafters. Installation kits include all components for rapid fitting, with 10-year warranties on powder-coated finishes and structural integrity guaranteed through industry-leading engineering standards.
People
Geoff Tarry
Director
With over 40 years in the glazing industry, Geoff founded Martindale Windows in 1992. His expertise in fenestration systems and commitment to quality has established the company as Northamptonshire's leading home improvement specialist. He oversees strategic direction and product development.
Russ
Managing Director
Russ manages daily operations and client relations, combining technical knowledge with customer service excellence. With 15 years in the business, he ensures all installations meet FENSA standards while maintaining the family values that define Martindale's approach to home improvements.
Alison
Accounts Manager
Alison oversees financial operations with 12 years' experience in construction sector accounting. She manages project costing, budgeting, and finance options through Ideal4Finance partnerships, ensuring transparent pricing and accessible payment solutions for clients across central England.
Scott
Operations Manager
Scott coordinates installation teams and supply chain logistics, maintaining 98% on-time delivery rates. With a background in construction management, he ensures all projects from small repairs to full conservatory builds meet strict quality control protocols and building regulations.
Jeff
Survey Manager
Jeff conducts technical assessments and design consultations, translating client requirements into precise specifications. His 18 years of experience in architectural glazing ensures accurate measurements and compliance with thermal efficiency standards during the critical survey stage of every project.
Questions
What areas do you serve for home improvement projects?
We operate across Northamptonshire, Bedfordshire, Leicestershire, Buckinghamshire, and Oxfordshire, providing windows, doors, and conservatories to both urban and rural properties.
Are your installations FENSA registered?
Yes, all our window and door installations come with FENSA certification, ensuring compliance with building regulations and eligibility for council tax exemptions in certain cases.
Do you offer financing options for home improvements?
We provide finance through Ideal4Finance, offering flexible payment plans with provisional rates determined by personal circumstances and loan requirements.
What warranty do you provide on products?
We offer 10-year warranties on powder-coated finishes and hardware, with additional guarantees varying by product type - including 5 years on verandas and specific component warranties.
Can I see products in person before purchasing?
Our Northampton showroom displays full product ranges, allowing customers to test mechanisms, inspect insulation properties, and visualise solutions in our purpose-built demonstration space.
How do you ensure energy efficiency in installations?
All products meet BFRC energy ratings, featuring multi-chambered profiles, low-E glass coatings, and thermal breaks. Our warm roof conservatories achieve U-values as low as 0.15W/m²K for optimal insulation.
Reviews (3)
Justin Vanezi
Jan 11, 2018 Report
Exceptional service and always reliable! Had windows and doors fitted when upgrading our kitchen. The MW team were friendly, professional and very.
Willson Skye Arrchie
Nov 19, 2017 Report
New composite door fitted looks fantastic. Friendly and professional service from start to finish. Definately recommend & going to use Martindale again for sure!
Helen Scott
Apr 12, 2017 Report
We got a play room built on to the back of our terraced house. The guys did a smashing job - very respectful considering they had to haul everything.