Business Details
Premium Windows and Doors in Milton Keynes
Infinite Windows are a reputable architectural glazing specialist operating from a prestigious 4,000 sq ft showroom in Milton Keynes. With a combined 60+ years of industry experience, our team delivers premium, thermally efficient window and door solutions tailored to new builds, renovations, and Passivhaus projects. As certified installers under CERTASS membership 17-1254, we maintain rigorous compliance with building regulations and technical standards. Our approach prioritises collaborative client engagement, leveraging advanced techniques like laser-levelling and thermal tape sealants to ensure flawless installations. We exclusively use high-quality products from market-leading brands such as Internorm and VELFAC, all available for review in our state-of-the-art showroom. Our expertise extends to energy-efficient solutions meeting Passivhaus standards, achieving U-values as low as 0.62W(m/K).We operate via appointments to provide personalized consultations, supporting clients from initial design through to final installation. Our commitment to quality is evidenced by our fully employed professional installation team, which guarantees technically accurate, regulation-compliant results without subcontractors. Having established trust with private developers and architects across Buckinghamshire, Bedfordshire, and surrounding regions, we maintain a reputation for delivering projects that exceed expectations. Client testimonials consistently highlight our professionalism, competitive pricing, and exceptional after-sales service.
Services
Timber-Aluminium Windows
uPVC-Aluminium Windows
Triple Glazed Windows
Passivhaus Solutions
Bifolding Doors
Custom Entrance Doors
Sliding Doors
Internal Doors
Energy Efficient Windows
Showroom Consultations
Highlights and features
- We have 60+ years combined experience in premium window and door installations.
- Our team consists of fully employed professional installers with technical expertise.
- We guarantee certified Passivhaus-standard products with U-values as low as 0.62W/mK.
- Our CERTASS accreditation ensures compliance with the highest industry standards.
- We provide tailored consultations, supporting clients from design through to installation.
Associations and certifications
- CERTASS
What people say
Excellent and prompt service
Amazing knowledge and clarity
Professional and approachable team
5-star service
Outstanding customer service
Services
Timber-Aluminium Windows
Our Timber-Aluminium Windows combine natural timber interiors with durable aluminium exteriors. These energy-efficient solutions meet Passivhaus standards, achieving U-values as low as 0.62W/mK. Ideal for new builds and renovations requiring thermal performance without compromising aesthetics, they prevent heat loss while maintaining architectural integrity. Each installation uses precision-engineered components from brands like Internorm and VELFAC.
Triple Glazed Windows
Triple Glazed Windows provide unparalleled thermal and acoustic insulation through 48mm sealed units with argon-filled cavities. Delivering U-values down to 0.62W/mK, they reduce energy bills by maintaining interior temperatures. The layered glass construction also attenuates external noise by up to 47dB, creating tranquil living environments while improving security against impact penetration.
Passivhaus Solutions
We specialize in Passivhaus-certified window and door systems meeting rigorous U-value requirements of 0.8W/mK. Our solutions include inward/outward opening configurations with composite frames combining aluminium, timber, or uPVC. Each project receives technical support through CAD details and compliance verification to ensure certification attainment. Approved suppliers include Internorm, Rationel, and The Residence Collection.
Bifolding Doors
Our Bifolding Doors feature sleek aluminum profiles with thermal break technology to minimize heat transfer. Available in configurations up to seven panels, they create seamless transitions between indoor and outdoor spaces. The slim-line designs maximize natural light while maintaining security standards, with optional integrated blinds and smart automation compatibility.
Custom Entrance Doors
We offer bespoke entrance door solutions combining security and aesthetics through brands like Internorm HT Front Doors. Options include thermal insulation up to 0.62W/mK, multi-point locking systems, and customizable finishes. Clients can utilize our online Door Designer tool to create personalized configurations incorporating glass panels, hardware, and bespoke detailing.
Questions
What types of windows do you offer?
We offer Timber-Aluminium, uPVC-Aluminium, uPVC, and Aluminium windows including Passivhaus-certified options from Internorm, VELFAC, and The Residence Collection.
Do you provide Passivhaus-compliant products?
Yes, we are approved suppliers of Passivhaus-standard windows and doors from Internorm, Rationel, and VELFAC with U-values down to 0.62W/m²K.
How long does installation take?
Standard installations complete within one day, with larger projects scheduled after initial consultation and technical validation.
Do you work outside Buckinghamshire?
We primarily cover Milton Keynes and 30-mile radius but consider distant projects individually upon receiving architectural drawings.
Are your installers certified?
We are certified installers under the CERTASS Self Certification Scheme (membership 17-1254) for building regulations compliance.
Can I design my own entrance door?
Yes, use our online Door Designer to customize Internorm entrance doors with finishes, glass types, and hardware options.
