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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryCrafts & TradesPlumbing & Building ServicesLuminoLotti Impianti SA
Lotti Impianti SA Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Lotti Impianti SA provides design, installation and maintenance of heating, sanitary and ventilation systems, as well as sheet-metal, waterproofing and stainless-steel works. The company also delivers industrial plant and large-scale installations, offers project management and operates a 24/7 emergency repair service.

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Lotti Impianti SA

Industry:Plumbing & Building Services
✓ Offered9
Heating
Solutions for heat generation, with attention to energy savings and environmental protection.
Sanitary systems
Installations and solutions for bathroom and kitchen areas, designed with care down to the smallest detail for modern residences.
Ventilation
Design and installation of ventilation systems for commercial, residential and industrial buildings.
Sheet metal work and waterproofing
Custom sheet metal work and waterproofing to prevent water ingress and building damage.
Industrial plants and large-scale projects
Plant engineering for industrial clients, pharmaceutical groups, distribution companies, hydroelectric power stations, tunnels and viaducts.
Stainless steel work
Work in stainless steel and metals, chimney flues, boilers, heat exchangers, prefabricated pipelines, made-to-measure special parts and welding.
Alternative energy
Alternative energy solutions aimed at containing costs, reducing ecological impact and optimizing performance.
Design and construction management
Technical office with engineers, architects and draftsmen; plant engineering design and construction management.
Repairs service 24/7
Repair interventions active 24 hours a day, 7 days a week, with standby service always available and rapid response.
Trust & reputation

ranQ Trust Score of Lotti Impianti SA: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of October 2026

Lotti Impianti SA scores 60.7 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.
x
CriterionValueWeight
  • Review quality: The average rating across all connected sources, smoothed against the industry mean. So 5.0 stars from three reviews do not outrank 4.7 from three hundred.57.524%
  • Review volume: The number of reviews across all sources. The scale is logarithmic: the first reviews count the most, and the maximum is reached at 50 reviews.61.010%
  • Review recency: The age of the most recent review. Two-year-old reviews deliberately sit in the middle, because that is normal for Swiss SMEs. Only after three years without a new voice does the value drop markedly.70.08%
Lotti Impianti SA scores 89.3 out of 100 points in the Substance area of the ranQ Trust Score. This area carries 28% of the weighting.
x
CriterionValueWeight
  • Establishment: Years since founding or brand launch, logarithmic. The maximum is reached at 15 years.100.012%
  • Company size: The headcount band, researched by ranQ or stated by the company. It is scored in steps rather than by head count, because the data only provides bands.70.07%
Lotti Impianti SA scores 85.0 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
x
CriterionValueWeight
  • Verification: Official register entry (commercial register with UID or professional-body record, 55 points), confirmed domain (20 points) and confirmed ranQ profile (up to 25 points, depending on completeness).85.022%
Lotti Impianti SA scores 17.1 out of 100 points in the Visibility area of the ranQ Trust Score. This area carries 8% of the weighting.
x
CriterionValueWeight
  • Website authority: Ahrefs' Domain Rating measures, on a scale of 0 to 100, how strongly a website is linked from other websites. For Swiss SMEs the range up to 40 is typical; the maximum is reached at 35.17.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Lotti Impianti SA reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 4.0 out of 5 stars from 10 customer reviews. The data basis is 96%, so the score is backed by part of the criteria. As of October 2026.

The Trust Score cannot be bought and is calculated from publicly verifiable data.

Reviews

Aggregated rating

Aggregated rating
4
of 5

Aggregated from 10 reviews across all connected sources

Sources
GGoogle410
★TrustpilotSoon
PProvenExpertSoon

Further sources are added continuously and factored into the ranQ Rating.

Knowledge

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Location

Via Quatorta
6533 Lumino
Opening hours
Mon
07:15 - 11:45, 13:00 - 17:00
Tue
07:15 - 11:45, 13:00 - 17:00
Wed
07:15 - 11:45, 13:00 - 17:00
Thu
07:15 - 11:45, 13:00 - 17:00
Fri
07:15 - 11:45, 13:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-109.802.986
Founded
2003 · 23 years
Last commercial register change
August 26, 2026
Employees
11 to 20
Legal form: Graded by liability and disclosure. The weight is kept small: a sole proprietorship is not a dubious company, it is just liable differently.
100.0
6%
  • Branch offices: Branch offices linked in the commercial register. Having none is normal and costs no points.70.03%
    • Full methodology

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