
Gulfport Insulation is an insulation contractor serving Hattiesburg, MS with blown-in attic insulation, crawl space insulation, and retrofit insulation for older homes, and we respond to every new request within 1 business day. We work on all types of Hattiesburg housing, from the historic pier-and-beam homes near downtown to the brick ranch neighborhoods off Hardy Street and the newer subdivisions on the north side.

A large share of Hattiesburg homes were built in the 1950s through the 1980s with insulation levels well below what south Mississippi summers actually demand, and blown-in insulation is the most practical way to bring those attics up to a current standard without tearing out walls. It fills every corner and gap in an aging attic in a single visit.
Hattiesburg summers regularly push into the mid-90s with high humidity, and an under-insulated attic turns your second floor into a greenhouse from June through September. Bringing the attic up to the depth recommended for south Mississippi's climate zone makes the whole house easier to cool and reduces the load on your air conditioner.
The older neighborhoods near downtown Hattiesburg have a high concentration of pier-and-beam homes with open crawl spaces, and those spaces accumulate ground moisture in a city that gets 60 inches of rain per year. Insulating and sealing that crawl space protects your floor system and keeps moisture from moving up into the living area.
Hattiesburg has a significant inventory of post-WWII brick ranch homes that were never insulated in the walls - the exterior brick provided some thermal mass but no real R-value. Retrofit insulation fills those wall cavities without requiring full demolition, which makes sense for the working-budget homeowners who own most of these properties.
Older Hattiesburg homes, particularly those built before 1980, were not constructed with air sealing as a priority. Small gaps at the top of interior walls, around recessed lights, and at plumbing penetrations allow conditioned air to escape into the attic all day long. Sealing those gaps is often the highest-return step in any insulation upgrade.
With 60 inches of annual rainfall and a water table that stays relatively high in parts of Hattiesburg, unprotected crawl space soil is a constant source of evaporative moisture. A vapor barrier installed on the ground surface stops that moisture before it can work its way up into the floor joists and subfloor of a pier-and-beam home.
Hattiesburg sits about 60 miles inland from the Gulf Coast, but the climate is still firmly in the hot-humid zone that the Department of Energy designates as one of the most demanding for home energy performance in the country. Average summer highs reach the mid-90s and the humidity that follows stays elevated well into fall. Unlike a Gulf Coast city, Hattiesburg also faces real tornado risk - a powerful EF4 tornado struck the city in February 2013, tearing through neighborhoods near the University of Southern Mississippi and downtown. That combination of relentless summer heat, heavy rainfall, and occasional severe storm damage creates a building stock where insulation issues are common and consequential.
The housing in Hattiesburg spans a wide range of ages and conditions. The historic neighborhoods near downtown - including the Oaks area - have homes that date to the early 1900s, many on pier-and-beam foundations that have been dealing with south Mississippi humidity for a century. The post-war brick ranch neighborhoods that expanded through the 1950s to 1970s make up the largest segment of the city's housing stock, and most of those homes have wall cavities that were never insulated. The north side has newer subdivisions built from the 1990s onward where the insulation is more current but the original systems are now approaching 20 to 30 years old and ready for their first real upgrade cycle. Hattiesburg also receives about 60 inches of rain per year - well above the national average - which keeps crawl spaces wet and makes moisture management a year-round concern for homeowners across all three of these property types.
Our crew works in Hattiesburg and is familiar with the City of Hattiesburg Building Services Division for any permit questions that come up on larger projects. The property types we encounter most often here are the older pier-and-beam homes in the historic core, the brick ranch homes that spread out along the main corridors, and the newer construction on the north side - three very different buildings with three different insulation approaches.
Hattiesburg is known as the Hub City because it sits at the crossroads of I-59 and US-98, and it serves as the main services hub for a wide region of south Mississippi. The city is home to the University of Southern Mississippi, and the neighborhoods around campus on Hardy Street have a high concentration of older rental homes that often need catch-up work on insulation and moisture control. Forrest General Hospital is another major landmark most Hattiesburg residents know well, and the neighborhoods that have grown up around the medical corridor are a mix of owner-occupied homes from multiple decades.
We also serve nearby Picayune, to the south, which shares many of the same inland south Mississippi housing conditions. If you are unsure whether we cover your address, give us a call and we can confirm quickly.
Call us or fill out the contact form online. We respond within 1 business day. We will ask a few basic questions about your home and the problem you are trying to solve so we can show up prepared for the estimate visit.
A contractor comes to your Hattiesburg home to inspect the attic, crawl space, and any other areas of concern. We check current insulation depth, look for signs of moisture damage or pest activity, and assess whether any removal is needed first. The estimate is free and written - no pressure to move forward on the spot.
Once you approve the estimate, we schedule the work at a time that fits your schedule. Most Hattiesburg jobs are completed in a single day. You do not need to leave your home during attic or crawl space work, and the crew handles all setup and cleanup.
Before we leave, we walk you through what was done so you can see the finished work. If any issues come up after installation, we are reachable and we stand behind our work. The goal is a job you are satisfied with, not one you have to call back about.
We serve Hattiesburg, MS and the surrounding area. Call us or submit the form and we will respond within 1 business day - no obligation, free written estimate.
(228) 256-1842Hattiesburg is one of the larger cities in Mississippi, with a population of roughly 47,000, and it has served as the main hub for south Mississippi for generations. The city sits at the intersection of I-59 and US-98, which is why locals and visitors alike have always called it the Hub City. Two universities anchor Hattiesburg's identity - the University of Southern Mississippi and William Carey University both call the city home, and the steady student and faculty population has shaped entire neighborhoods around campus. The housing stock reflects the city's long history: the Oaks neighborhood and areas close to downtown have homes that date to the early 1900s, many of them wood-frame on pier-and-beam foundations that have been through more than a century of south Mississippi summers. The post-war expansion pushed out through the 1950s and 1960s as brick ranch homes spread across the middle neighborhoods, and the north side toward Oak Grove has seen substantial new construction since the 1990s.
The city's role as a regional healthcare center adds another layer to its character - Forrest General Hospital and Merit Health Wesley are major employers that draw working families from across the surrounding counties. Hattiesburg also carries the memory of a significant tornado in February 2013, an EF4 storm that tore through neighborhoods near USM and reminded the whole region how quickly severe weather can change a home's condition. We also serve homeowners in nearby Long Beach, on the coast, and in Picayune, which sits roughly between Hattiesburg and the coast along I-59.
High-performance spray foam that air-seals and insulates in a single application.
Learn moreKeep conditioned air in and outdoor heat out with proper attic insulation.
Learn moreLoose-fill insulation blown into attics and walls for even, gap-free coverage.
Learn moreSafe removal of old, damaged, or contaminated insulation before replacement.
Learn moreInsulate your crawl space to prevent moisture intrusion and heat loss.
Learn moreSeal drafts and air leaks throughout your home to maximize energy efficiency.
Learn moreInsulate basement walls and rim joists to reduce energy loss from below.
Learn moreDense, moisture-resistant closed-cell foam for maximum R-value per inch.
Learn moreFlexible, sound-dampening open-cell foam ideal for interior walls and attics.
Learn moreSeal attic bypasses and penetrations before adding insulation for best results.
Learn moreHeavy-duty vapor barrier installation to control moisture in crawl spaces.
Learn moreProfessional vapor barrier installation to protect your home from moisture damage.
Learn moreAdd insulation to existing homes with minimal disruption to walls and finishes.
Learn moreCommercial-grade insulation for warehouses, offices, and industrial buildings.
Learn moreCall Gulfport Insulation or request a free estimate online. We serve Hattiesburg and the surrounding south Mississippi area.