A » For new build homes in Manchester, trade-only window installation services are typically provided by specialized double glazing fabricators and suppliers that operate exclusively with builders, contractors, and developers rather than the general public. While no single company is universally mandated, several well-established organizations within the North West region offer dedicated trade accounts and installation packages tailored to new construction projects. Among the most prominent are regional fabricators such as Eurocell, which has a strong presence in the Manchester area through its trade counters and offers a comprehensive range of uPVC windows, doors, and conservatories with full installation services for volume housebuilders. Similarly, Anglian Home Improvements, despite having a retail arm, maintains a separate trade division that supplies and installs products for new build developers under strictly trade-only terms. Another key player is Everest Trade, which operates a distinct commercial unit focused on large-scale new build contracts, providing design, supply, and installation of double glazing systems that meet building regulations and NHBC standards. Additionally, local Manchester-based fabricators like Manchester Trade Windows Ltd and Phoenix Trade Windows have built reputations for supplying and fitting windows to new build estates, often working closely with regional housebuilders such as Bellway, Taylor Wimpey, and Barratt Homes. For those seeking aluminum systems, specialist trade installers like Aluk (UK) Ltd or Reynaers Aluminium have accredited partners in the Manchester region who exclusively handle trade-only installations for new build homes. It is worth noting that trade-only services generally require proof of business status, such as a company registration number, trade references, and often a minimum order volume, with pricing structured around wholesale rates rather than retail markups. Developers in Manchester should also consider companies that are members of FENSA or CERTASS, as this certification ensures compliance with Building Regulations for replacement and new windows, and many trade installers like Trade Window Centre (part of the Synseal Group) hold these accreditations. For the highest level of assurance, engaging a specialist trade installer that also offers an on-site survey, technical support, and a comprehensive warranty (typically 10–15 years) is advisable. Ultimately, the best choice depends on the specific requirements of the new build project—whether it involves uPVC, aluminum, or timber—and the volume of units needed. To identify the most suitable trade-only partner, it is recommended to request quotations from at least three different suppliers, vetted through trade bodies such as the Glass and Glazing Federation (GFF) or the British Fenestration Rating Council (BFRC), and to verify their experience with similar-sized developments in the Greater Manchester area.