What's the typical turnaround time for marketing agency proofreading?

Most documents are returned within two business days. For rush projects, same-day and overnight turnaround is available. Turnaround depends on document length and complexity, and timing is confirmed when you send the file.

How much do marketing agency proofreading services cost?

Pricing is hourly: $68/hr for standard (2–3 business days), $82/hr for priority (under 24 hours), and $94/hr for same-day rush. You receive an exact estimate before work begins, so the cost is never a surprise. Agencies with recurring needs can set up a monthly retainer for priority scheduling and guaranteed rush availability.

Marketing Agency Proofreading Services

Q: How do you handle confidential client materials?

Every document is treated as confidential by default. NDAs are available before work begins. Unlike large proofreading agencies, your work never passes through a rotating team of reviewers — one proofreader handles everything.

Q: Can you follow our agency's or our client's style guide?

Yes. Send your style guide, brand standards, or a reference document, and proofreading is done against your specific conventions. Without a formal guide, Chicago Manual of Style is used as default.

Q: How is this different from Grammarly or AI proofreading tools?

AI tools catch surface-level errors but generate false positives, miss contextual inconsistencies, and lack the judgment to know when copywriting should intentionally break rules. A human proofreader reads for meaning, coherence, brand voice, and subtle inconsistencies across multi-page documents.

The best agencies produce high volumes of client-facing work, in addition to RFPs to win new work.

One typo in a client deliverable or RFP can cost tens of thousands—and irreparable damage to your working relationship.

I provide proofreading services for agency RFPs, proposals, and campaign materials (e.g., landing page copy, email copy, ads) to help keep your reputation intact. Your clients notice only your expertise, not your errors.

Let’s Face It

Your team can’t proofread its own work.

Marketing agency team reviewing documents

Your creative directors, strategists, copywriters, and project managers were not hired to do tedious proofreading work. You pay them too much for that to be effective.

Even if they had been, they couldn’t. Proofreading requires extensive training, both for proficiency and efficiency—training that your staff does not have.

And there’s a biological problem, too. After spending hours with a document, the brain starts reading what it expects to be on the page. Every successive re-read actually erases meaning and renders mistakes invisible. No amount of discipline can overcome this.

Your team doesn’t have the expertise, doesn’t have the time, and physically cannot see the errors hiding in plain sight.

ChatGPT and Grammarly won’t cut it.

The alternatives that agencies reach for fall short:

Grammarly catches surface errors but misses “p.m.” on page 3 and “PM” on page 12.
ChatGPT doesn’t understand your client’s brand guidelines.
Neither tool is adept at proofreading the visual work that marketing agencies produce, or at understanding the difference between “proper” English and copywriting.

Meanwhile, the stakes keep climbing:

An RFP with a missing signature gets immediately disqualified (true story)
A government doc with an unfortunately missing “l” in “public” slips through to the client (also a true story!)
A misspelled city name says more about your agency than 47 pages of strategy ever will.

That’s a gap that requires the services of a professional marketing agency proofreader.

Make perfection your competitive advantage.

What your agency needs is a dedicated proofreading team member who:

learns your standards,
understands the document types you produce,
delivers fast, consistent, reliable work, and
comes without the overhead of a full-time hire or the unreliability of marketplace freelancers.

Proofread.co provides white-glove technical proofreading services. I become an extension of your team, working within your style guide and delivering impeccable work time after time.

Why Marketing Agencies Trust Proofread.co

Six reasons agencies choose a dedicated proofreader.

One Proofreader Who Knows Your Business

As a single human editor, I handle every project from start to finish. I learn your style guide, your clients’ preferences, their voice, and your preferences. I quickly operate as an extension of your team.

Your Clients Never See My Name

I operate as a white-label proofreading partner. You get to bill your clients for my work, and they receive polished, error-free deliverables from your agency.

Impeccable Proofreading, Unbeatable Turnaround

I’ve spent a decade working within agency timelines, including same-day and overnight turnarounds. When your client moves the deadline up by 48 hours, I move with it.

Built for High-Stakes Documents

I do not skim. I audit grammar, punctuation, formatting, terminology, internal consistency, and design with the rigor your work demands.

Your Secrets Are Safe with Me

I treat every document as confidential by default, and I’m happy to sign an NDA before we begin. Your work never passes through a rotating team of reviewers.

Errors Caught Without Flattening Copy

To be persuasive, marketing collateral breaks the rules. It’s crucial that your proofreader knows which rules can be broken and which ones cannot.

Proofreading for High-Stakes Documents

Ads, emails, landing pages, website copy, and more.

If your agency produces it and a client, evaluator, or board member will read it, I proofread it. These are the document types I work with most for marketing and communications firms:

Client-facing reports and presentations
RFP and proposal responses
Case studies and white papers
Website copy and landing pages
Annual reports and corporate publications
Grant applications and funding proposals
Social media copy and ad creative
Press releases and media kits

Peace of Mind Included

What marketing agency proofreading entails.

Every document I return has undergone a rigorous audit with zero tolerance for credibility-killing errors. Every time marketing agencies outsource proofreading to me, I check for (at a minimum):

Grammar, Spelling, and Punctuation

My specialty is the judgment calls that automated tools get wrong. Hyphenation, serial commas, capitalization conventions, and the dozens of style decisions that vary by client and industry.

Formatting and Visual Consistency

Heading hierarchy, bullet formatting, spacing, indentation, table alignment, numbering sequences, and font consistency. If the bulleted list on p. 6 uses em dashes and the one on page 9 uses en dashes, I’ll catch it.

Terminology and Style Guide Adherence

I proofread against your client’s style guide—or your agency’s house style—and ensure terminology stays consistent throughout. If your client’s product name is capitalized a specific way, I’ll hold the entire document to that standard.

Cross-Reference and Factual Consistency

When the executive summary says “12 locations” and the appendix says “14,” I’ll catch it. I check that internal references, figure numbers, table labels, and page references actually point where they claim to.

Tracked Changes and Comments

You receive the document back with every edit visible in tracked changes. For anything that requires your team’s judgment, I leave a comment explaining the issue and recommending a direction. You stay in control.

Flow and Clarity Editing

Beyond catching errors, I tighten phrasing, smooth awkward transitions, and flag sentences that are technically correct but don’t read well. I suggest a cleaner direction—without rewriting your voice out of the copy.

Link, URL, and Contact Verification

I test every link, verify phone numbers, confirm email addresses, and check that URLs actually resolve to the right page. These are the errors that AI tools can’t catch and tired eyes skip over.

Voice Unification Across Multiple Authors

When three people write different sections of the same document, the tone drifts, the terminology shifts, and the formatting fractures. I make multi-author documents read like one person wrote the whole thing.

How outsourcing your agency’s proofreading works.

1. Send Your Document Email your file, upload it, or send me a link. Include any style guides, brand standards, or specific instructions. I’ll reply quickly with a time and cost estimate.

2. Let Me Work I proofread for spelling, grammar, punctuation, formatting consistency, terminology, cross-reference accuracy, adherence to your style guide, and marketing-specific errors.

3. Send with Confidence Your team reviews the edits, accepts or integrates the changes, and sends the deliverable to your client with peace of mind.

Meet your dedicated proofreader.

When I started proofreading in 2017, I caught errors in a marketing agency’s collateral that would have ended the career of the executive who hired me.

I have spent the decade since then proofreading high-stakes marketing agency documents with precision. I specialize in the kind of work you produce every day: campaign deliverables, brochures, annual reports, and even RFP responses.

I work as a solo freelancer, not an agency. That means:

I learn your clients’ conventions, your voice, etc. I get faster and sharper the longer we work together.
I catch errors that automated tools miss, and exercise judgment they don’t have.
I care deeply about working relationships, ensuring you can rely on me for the long-term.

My background includes published work in the Harvard Summer Review, study under writing instructors from Harvard, MIT, and Yale, and perfect scores on the ACT and SAT English sections. If there are errors in your document, I will find them before your client does.

How much does marketing agency proofreading cost?

Proofreading service cost is based on an hourly rate tied to your turnaround needs. You’ll receive an exact estimate based on your document’s length and complexity before work begins, so the price is never a surprise.

Tier	Rate	Turnaround
Standard	$68/hr	2–3 business days
Priority	$82/hr	Under 24 hours
Same-Day Rush	$94/hr	Same day

Unlike per-page or per-word pricing models, hourly rates ensure that formatting-heavy deliverables like pitch decks, RFP responses, and brand guidelines get the same careful attention as straightforward copy. Every turnaround tier includes the same meticulous, line-by-line review.

Agencies with recurring proofreading needs can set up a monthly retainer for priority scheduling, guaranteed rush availability, and predictable proofreading services cost.

Questions agencies ask about proofreading.

What’s the typical turnaround time?

Most documents are returned within two business days. For rush projects, I offer same-day and overnight turnaround. Turnaround does depend heavily on document length and complexity, so I’ll confirm timing when you send the file.

How much do proofreading services cost?

Unlike most proofreading agencies, which charge by the word, my proofreading services prices are by the hour: $68/hr for standard (2–3 business days), $82/hr for priority (under 24 hours), and $94/hr for same-day rush.

You’ll receive an exact estimate before work begins, so the proofreading service cost is never a surprise. Every tier gets the same line-by-line review. Agencies with recurring needs can set up a retainer for priority scheduling and guaranteed rush availability.

How do you handle confidential client materials?

I treat every document as confidential by default, and I’m happy to sign an NDA before we begin. Any proprietary information, whether it is yours or your client’s, will be held securely.

Can you follow our agency’s (or our client’s) style guide?

I prefer to. Send me your style guide, brand standards, or a reference document, and I’ll proofread against your specific conventions. If you don’t have a formal guide, I default to Chicago Manual of Style and flag judgment calls for your team to decide. I learn your preferences over time and carry them forward.

What if our agency has a high-volume need for proofreading?

I understand that volume can fluctuate significantly. I take on a limited number of clients to ensure that I have margin to provide excellent service during periods of heavy work. For agencies with consistently high volume, I offer retainer arrangements with priority scheduling and discounted rates.

How is this different from Grammarly or AI proofreading tools?

Grammarly and AI tools catch surface-level spelling and grammar issues. While their proofreading skills have improved, they still have several severe shortcomings:

They surface dozens of false positives and false negatives, requiring staff to comb through and decide which to correct. They lack judgment, rendering them incapable of understanding when copywriting should or should not break the rules.

A human proofreader reads for meaning, coherence, and the kind of subtle inconsistencies that make clients and evaluators question your attention to detail.

If you still want to use AI for proofreading, check out AI Assist.

White-Glove Proofreading Services for Marketing Agencies