At NÖMA, a home delivered turnkey is covered, from delivery, by three separate warranties plus technical support: a 10-year structural warranty, a 5-year weatherproofing warranty, a 3-year installations warranty, and ongoing technical assistance. These warranties are documented on our Trust page and apply to the habitable baseline described in our article on what a turnkey modular home really includes. Here is exactly what each one covers, for how long, and what they do not replace.
Understanding the topic
The structural warranty covers, for 10 years from delivery, the home's lightweight steel structure and main welds, against any manufacturing defect. It is the longest-running warranty: it covers the frame itself, the element that gives the home its structural integrity over time. This structure is manufactured in a workshop, under quality control before shipping, which limits the uncertainties of a traditional site exposed to weather.
The weatherproofing warranty covers, for 5 years, the building's weather-tightness: roof, walls and exterior joinery, against water infiltration. It concerns the building envelope rather than its load-bearing structure: it is what protects the inside of the home from the weather day to day.
Deep exploration
The installations warranty covers, for 3 years, the indoor electrical and plumbing systems, against any malfunction. On top of this, NÖMA provides ongoing technical assistance, with no stated time limit, to support the home once installed. NÖMA does not publicly detail the exact scope of this assistance beyond this description; if this point matters for your project, it is worth asking directly.
These three warranties are published by NÖMA: they should not be confused with the legal decennial warranty (garantie décennale) under French law, which automatically applies to any builder for 10 years and covers defects affecting the solidity of the building or making it unfit for its purpose, nor with the one-year completion warranty or the two-year warranty covering detachable fittings, as defined by the French Ministry of Economy. NÖMA does not publicly state the exact legal regime that applies to its homes, nor whether a dommages-ouvrage insurance policy is in place: this is not legal advice, only a reference point for reading any builder's warranty correctly, ours included.
Practical guidance
The 100% factory quality control mentioned on our Trust page is a manufacturing process, not an additional warranty: it is a step that precedes delivery. Likewise, the published warranties cover the home itself: they do not cover the land, connections to public utility networks, or administrative procedures, which belong to a separate scope described in our article on what a turnkey offer includes.
To compare the warranties of two modular home offers, four questions are usually enough: what duration applies to the structure, to weatherproofing and to the installations? Is technical support provided after delivery, and for how long? Are these warranties contractual, or backed by a precise legal regime? And finally, what manufacturing stage does the advertised price correspond to, a point already covered in our article on how much a turnkey modular home costs. Full details of our warranties and certifications are available on our Trust page.
Architectural perspective
At NÖMA, a warranty is not a marketing argument: it is a dated, defined commitment, one we would rather detail precisely than promise vaguely. Understanding what is covered, and what is not, is part of choosing a modular home with confidence.
