日本語EN中文
Contact
BUSINESS

Comprehensive Facility Works

We handle facility works for a wide range of buildings: houses, condominiums, offices, commercial and logistics facilities, hospitals, factories and public facilities — supporting the entire equipment life cycle from installation to renewal and maintenance, all in one place.

illustration
01

Heating & Cooling Systems

We design and install heating and cooling systems for comfortable indoor environments — from a single room air conditioner at home to commercial packaged units for offices and shops. We propose the best equipment for each building and also handle replacement with energy-saving models to reduce running costs.

Main Services
  • Installation, relocation and removal of room ACs
  • Installation of commercial packaged ACs
  • Replacement with energy-saving models
  • Refrigerant piping, drain piping and wiring
  • Multi-split AC systems
  • Test runs, performance checks and tuning
HousesOfficesShopsCondominiums
illustration
02

Refrigeration Systems

We install refrigeration systems that support the food and logistics industries — from commercial refrigerators for restaurants to display cases for supermarkets and prefabricated cold rooms for food factories and warehouses. As temperature-control professionals protecting food safety, we promise reliable installation and stable operation.

Main Services
  • Commercial refrigerator and freezer installation
  • Refrigerated and frozen display cases
  • Prefabricated cold room assembly
  • Refrigeration units and condensing units
  • Refrigerant and drain piping
  • Temperature-control system tuning
RestaurantsRetailFood FactoriesWarehouses
illustration
03

Air-Conditioning Systems

We build air-conditioning systems that optimize temperature, humidity and ventilation. In today's taller, more airtight buildings, planned HVAC determines building value and occupant health. Combining building multi-split ACs and heat exchangers, we design air environments that balance comfort and energy savings.

Main Services
  • Design and installation of commercial HVAC
  • Building multi-split AC systems
  • Ventilation and total heat exchangers
  • Humidification, dehumidification and air purification
  • HVAC renewal works
  • Load calculation and equipment selection
Office BuildingsCommercialMedicalCondominiums
illustration
04

Plumbing & Hot-Water Systems

We build safe, reliable water lifelines: the supply and drainage systems essential to daily life and business, and hot-water systems for kitchens, baths and washrooms. From new piping and renewal to fixture installation and leak repair, leave everything water-related to us.

Main Services
  • New installation and renewal of water and drain pipes
  • Water heater replacement and installation
  • Faucet and sanitary fixture installation
  • Leak detection and repair
  • Water pumps and storage tank works
  • Kitchen and bathroom water-area renovation
HousesShopsCondominiumsBuildings
illustration
05

Gas Piping

We install and renew city gas and LP gas systems: gas piping for new buildings, additional gas outlets for renovations, renewal of aged piping, and piping for appliance replacement. As standards differ between city gas and LP gas, engineers well-versed in each work safety-first.

Main Services
  • City gas and LP gas piping
  • Adding and relocating gas outlets
  • Renewal of aged gas piping
  • Gas appliance connection and replacement
  • Re-routing piping for renovations
  • Air-tightness tests and safety checks
HousesRestaurantsFactoriesNew & Renovation
illustration
06

Ductwork

We design and install ventilation, smoke-exhaust and HVAC ducts. Installed above ceilings, ducts are the building's "airways". Proper routing and sizing for each use and airflow greatly affect HVAC efficiency and indoor environments. We cover everything from restaurant kitchen exhaust to building smoke-exhaust systems.

Main Services
  • HVAC duct design and installation
  • Ventilation ducts and fans
  • Smoke-exhaust duct works
  • Kitchen exhaust ducts and hoods
  • Diffusers and grilles installation
  • Renovation with duct cleaning
RestaurantsOffice BuildingsCommercialFactories
illustration
07

Septic Tank Systems

We install wastewater treatment systems that protect the environment. Septic tanks clean household wastewater before returning it to rivers — vital environmental infrastructure required by law where sewers are unavailable. From installation to replacement and removal, our code-compliant work protects the water environment.

Main Services
  • New combined-treatment septic tanks
  • Replacement and removal of existing tanks
  • Sewer connection conversion works
  • Outlet and inlet piping
  • Excavation, backfilling and surface restoration
  • Legal procedures and filings
HousesApartmentsShopsPublic Facilities
illustration
08

Maintenance Services

We provide maintenance services that keep equipment running reliably. Equipment is not "done once installed" — regular inspection and care greatly affect performance and lifespan. From emergency response for breakdowns and leaks to planned maintenance contracts, HARUHIRO takes long-term responsibility for what we build.

Main Services
  • Periodic inspection of HVAC and refrigeration
  • Filter and consumable replacement
  • Fault diagnosis and repair
  • Emergency response for leaks and clogs
  • Annual maintenance contracts
  • Equipment history management
CorporateShopsProperty Mgmt.Homes
illustration
09

Equipment Renewal & Renovation

We maintain and raise building value by renewing aged equipment — from renewal plans based on equipment life, to energy-saving replacements and tenant-change renovations. We also have the know-how for "occupied works" that minimize impact on operating shops and occupied buildings.

Main Services
  • Diagnosis and renewal planning for aged equipment
  • HVAC and plumbing renewal
  • Replacement with energy-saving equipment
  • Renovation for tenant or use changes
  • Works while occupied or in business
  • Restoration works
Office BuildingsCondominiumsShopsFactories
illustration
10

Construction Management

We provide construction management covering safety, quality, schedule and cost. Facility works involve many trades and complex processes; our experienced managers oversee the whole site to enforce safety, ensure quality and optimize schedules — reliably leading sites as either prime or subcontractor.

Main Services
  • Site safety management
  • Quality control and inspections
  • Schedule management
  • Subcontractor coordination
  • Shop drawings and work plans
  • Neighbor relations and filings support
New ConstructionRenovation SitesPrime ContractorSubcontractor

Feel free to ask about any project or estimate

Contact Us

Please feel free to contact us.